1165 lines
26 KiB
C
1165 lines
26 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2005, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* Includes code and algorithms from the Zapata library.
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief ADSI support
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*
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* \author Mark Spencer <markster@digium.com>
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*
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* \note this module is required by app_voicemail and app_getcpeid
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* \todo Move app_getcpeid into this module
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* \todo Create a core layer so that app_voicemail does not require
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* res_adsi to load
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*/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include <time.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <math.h>
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#include <errno.h>
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#include "asterisk/adsi.h"
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#include "asterisk/ulaw.h"
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#include "asterisk/alaw.h"
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#include "asterisk/callerid.h"
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#include "asterisk/logger.h"
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#include "asterisk/fskmodem.h"
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#include "asterisk/channel.h"
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#include "asterisk/adsi.h"
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#include "asterisk/module.h"
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#include "asterisk/config.h"
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#include "asterisk/file.h"
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#include "asterisk/options.h"
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#define DEFAULT_ADSI_MAX_RETRIES 3
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#define ADSI_MAX_INTRO 20
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#define ADSI_MAX_SPEED_DIAL 6
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#define ADSI_FLAG_DATAMODE (1 << 8)
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static int maxretries = DEFAULT_ADSI_MAX_RETRIES;
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/* Asterisk ADSI button definitions */
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#define ADSI_SPEED_DIAL 10 /* 10-15 are reserved for speed dial */
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static char intro[ADSI_MAX_INTRO][20];
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static int aligns[ADSI_MAX_INTRO];
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static char speeddial[ADSI_MAX_SPEED_DIAL][3][20];
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static int alignment = 0;
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static int adsi_generate(unsigned char *buf, int msgtype, unsigned char *msg, int msglen, int msgnum, int last, int codec)
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{
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int sum;
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int x;
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int bytes=0;
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/* Initial carrier (imaginary) */
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float cr = 1.0;
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float ci = 0.0;
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float scont = 0.0;
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if (msglen > 255)
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msglen = 255;
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/* If first message, Send 150ms of MARK's */
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if (msgnum == 1) {
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for (x=0;x<150;x++) /* was 150 */
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PUT_CLID_MARKMS;
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}
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/* Put message type */
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PUT_CLID(msgtype);
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sum = msgtype;
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/* Put message length (plus one for the message number) */
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PUT_CLID(msglen + 1);
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sum += msglen + 1;
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/* Put message number */
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PUT_CLID(msgnum);
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sum += msgnum;
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/* Put actual message */
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for (x=0;x<msglen;x++) {
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PUT_CLID(msg[x]);
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sum += msg[x];
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}
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/* Put 2's compliment of sum */
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PUT_CLID(256-(sum & 0xff));
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#if 0
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if (last) {
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/* Put trailing marks */
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for (x=0;x<50;x++)
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PUT_CLID_MARKMS;
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}
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#endif
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return bytes;
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}
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static int adsi_careful_send(struct ast_channel *chan, unsigned char *buf, int len, int *remainder)
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{
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/* Sends carefully on a full duplex channel by using reading for
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timing */
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struct ast_frame *inf, outf;
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int amt;
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/* Zero out our outgoing frame */
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memset(&outf, 0, sizeof(outf));
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if (remainder && *remainder) {
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amt = len;
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/* Send remainder if provided */
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if (amt > *remainder)
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amt = *remainder;
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else
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*remainder = *remainder - amt;
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outf.frametype = AST_FRAME_VOICE;
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outf.subclass = AST_FORMAT_ULAW;
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outf.data = buf;
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outf.datalen = amt;
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outf.samples = amt;
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if (ast_write(chan, &outf)) {
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ast_log(LOG_WARNING, "Failed to carefully write frame\n");
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return -1;
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}
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/* Update pointers and lengths */
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buf += amt;
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len -= amt;
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}
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while(len) {
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amt = len;
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/* If we don't get anything at all back in a second, forget
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about it */
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if (ast_waitfor(chan, 1000) < 1)
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return -1;
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inf = ast_read(chan);
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/* Detect hangup */
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if (!inf)
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return -1;
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if (inf->frametype == AST_FRAME_VOICE) {
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/* Read a voice frame */
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if (inf->subclass != AST_FORMAT_ULAW) {
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ast_log(LOG_WARNING, "Channel not in ulaw?\n");
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return -1;
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}
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/* Send no more than they sent us */
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if (amt > inf->datalen)
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amt = inf->datalen;
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else if (remainder)
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*remainder = inf->datalen - amt;
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outf.frametype = AST_FRAME_VOICE;
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outf.subclass = AST_FORMAT_ULAW;
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outf.data = buf;
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outf.datalen = amt;
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outf.samples = amt;
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if (ast_write(chan, &outf)) {
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ast_log(LOG_WARNING, "Failed to carefully write frame\n");
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return -1;
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}
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/* Update pointers and lengths */
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buf += amt;
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len -= amt;
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}
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ast_frfree(inf);
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}
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return 0;
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}
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static int __adsi_transmit_messages(struct ast_channel *chan, unsigned char **msg, int *msglen, int *msgtype)
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{
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/* msglen must be no more than 256 bits, each */
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unsigned char buf[24000 * 5];
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int pos = 0, res;
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int x;
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int start=0;
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int retries = 0;
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char ack[3];
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/* Wait up to 500 ms for initial ACK */
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int waittime;
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struct ast_frame *f;
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int rem = 0;
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int def;
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if (chan->adsicpe == AST_ADSI_UNAVAILABLE) {
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/* Don't bother if we know they don't support ADSI */
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errno = ENOSYS;
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return -1;
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}
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while(retries < maxretries) {
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if (!(chan->adsicpe & ADSI_FLAG_DATAMODE)) {
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/* Generate CAS (no SAS) */
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ast_gen_cas(buf, 0, 680, AST_FORMAT_ULAW);
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/* Send CAS */
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if (adsi_careful_send(chan, buf, 680, NULL)) {
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ast_log(LOG_WARNING, "Unable to send CAS\n");
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}
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/* Wait For DTMF result */
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waittime = 500;
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for(;;) {
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if (((res = ast_waitfor(chan, waittime)) < 1)) {
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/* Didn't get back DTMF A in time */
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ast_debug(1, "No ADSI CPE detected (%d)\n", res);
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if (!chan->adsicpe)
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chan->adsicpe = AST_ADSI_UNAVAILABLE;
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errno = ENOSYS;
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return -1;
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}
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waittime = res;
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f = ast_read(chan);
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if (!f) {
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ast_debug(1, "Hangup in ADSI\n");
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return -1;
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}
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if (f->frametype == AST_FRAME_DTMF) {
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if (f->subclass == 'A') {
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/* Okay, this is an ADSI CPE. Note this for future reference, too */
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if (!chan->adsicpe)
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chan->adsicpe = AST_ADSI_AVAILABLE;
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break;
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} else {
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if (f->subclass == 'D') {
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ast_debug(1, "Off-hook capable CPE only, not ADSI\n");
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} else
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ast_log(LOG_WARNING, "Unknown ADSI response '%c'\n", f->subclass);
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if (!chan->adsicpe)
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chan->adsicpe = AST_ADSI_UNAVAILABLE;
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errno = ENOSYS;
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return -1;
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}
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}
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ast_frfree(f);
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}
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ast_debug(1, "ADSI Compatible CPE Detected\n");
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} else {
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ast_debug(1, "Already in data mode\n");
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}
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x = 0;
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pos = 0;
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#if 1
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def= ast_channel_defer_dtmf(chan);
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#endif
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while((x < 6) && msg[x]) {
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res = adsi_generate(buf + pos, msgtype[x], msg[x], msglen[x], x+1 - start, (x == 5) || !msg[x+1], AST_FORMAT_ULAW);
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if (res < 0) {
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ast_log(LOG_WARNING, "Failed to generate ADSI message %d on channel %s\n", x + 1, chan->name);
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return -1;
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}
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ast_debug(1, "Message %d, of %d input bytes, %d output bytes\n", x + 1, msglen[x], res);
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pos += res;
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x++;
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}
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rem = 0;
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res = adsi_careful_send(chan, buf, pos, &rem);
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if (!def)
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ast_channel_undefer_dtmf(chan);
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if (res)
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return -1;
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ast_debug(1, "Sent total spill of %d bytes\n", pos);
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memset(ack, 0, sizeof(ack));
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/* Get real result */
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res = ast_readstring(chan, ack, 2, 1000, 1000, "");
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/* Check for hangup */
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if (res < 0)
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return -1;
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if (ack[0] == 'D') {
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ast_debug(1, "Acked up to message %d\n", atoi(ack + 1)); start += atoi(ack + 1);
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if (start >= x)
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break;
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else {
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retries++;
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ast_debug(1, "Retransmitting (%d), from %d\n", retries, start + 1);
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}
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} else {
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retries++;
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ast_log(LOG_WARNING, "Unexpected response to ack: %s (retry %d)\n", ack, retries);
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}
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}
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if (retries >= maxretries) {
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ast_log(LOG_WARNING, "Maximum ADSI Retries (%d) exceeded\n", maxretries);
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errno = ETIMEDOUT;
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return -1;
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}
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return 0;
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}
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static int _ast_adsi_begin_download(struct ast_channel *chan, char *service, unsigned char *fdn, unsigned char *sec, int version)
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{
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int bytes;
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unsigned char buf[256];
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char ack[2];
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bytes = 0;
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/* Setup the resident soft key stuff, a piece at a time */
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/* Upload what scripts we can for voicemail ahead of time */
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bytes += ast_adsi_download_connect(buf + bytes, service, fdn, sec, version);
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if (ast_adsi_transmit_message_full(chan, buf, bytes, ADSI_MSG_DOWNLOAD, 0))
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return -1;
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if (ast_readstring(chan, ack, 1, 10000, 10000, ""))
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return -1;
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if (ack[0] == 'B')
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return 0;
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ast_debug(1, "Download was denied by CPE\n");
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return -1;
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}
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static int _ast_adsi_end_download(struct ast_channel *chan)
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{
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int bytes;
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unsigned char buf[256];
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bytes = 0;
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/* Setup the resident soft key stuff, a piece at a time */
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/* Upload what scripts we can for voicemail ahead of time */
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bytes += ast_adsi_download_disconnect(buf + bytes);
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if (ast_adsi_transmit_message_full(chan, buf, bytes, ADSI_MSG_DOWNLOAD, 0))
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return -1;
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return 0;
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}
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static int _ast_adsi_transmit_message_full(struct ast_channel *chan, unsigned char *msg, int msglen, int msgtype, int dowait)
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{
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unsigned char *msgs[5] = { NULL, NULL, NULL, NULL, NULL };
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int msglens[5];
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int msgtypes[5];
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int newdatamode;
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int res;
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int x;
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int writeformat, readformat;
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int waitforswitch = 0;
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writeformat = chan->writeformat;
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readformat = chan->readformat;
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newdatamode = chan->adsicpe & ADSI_FLAG_DATAMODE;
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for (x=0;x<msglen;x+=(msg[x+1]+2)) {
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if (msg[x] == ADSI_SWITCH_TO_DATA) {
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ast_debug(1, "Switch to data is sent!\n");
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waitforswitch++;
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newdatamode = ADSI_FLAG_DATAMODE;
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}
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if (msg[x] == ADSI_SWITCH_TO_VOICE) {
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ast_debug(1, "Switch to voice is sent!\n");
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waitforswitch++;
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newdatamode = 0;
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}
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}
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msgs[0] = msg;
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msglens[0] = msglen;
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msgtypes[0] = msgtype;
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if (msglen > 253) {
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ast_log(LOG_WARNING, "Can't send ADSI message of %d bytes, too large\n", msglen);
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return -1;
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}
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ast_stopstream(chan);
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if (ast_set_write_format(chan, AST_FORMAT_ULAW)) {
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ast_log(LOG_WARNING, "Unable to set write format to ULAW\n");
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return -1;
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}
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if (ast_set_read_format(chan, AST_FORMAT_ULAW)) {
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ast_log(LOG_WARNING, "Unable to set read format to ULAW\n");
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if (writeformat) {
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if (ast_set_write_format(chan, writeformat))
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ast_log(LOG_WARNING, "Unable to restore write format to %d\n", writeformat);
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}
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return -1;
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}
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res = __adsi_transmit_messages(chan, msgs, msglens, msgtypes);
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if (dowait) {
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ast_debug(1, "Wait for switch is '%d'\n", waitforswitch);
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while (waitforswitch-- && ((res = ast_waitfordigit(chan, 1000)) > 0)) {
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res = 0;
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ast_debug(1, "Waiting for 'B'...\n");
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}
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}
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if (!res)
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chan->adsicpe = (chan->adsicpe & ~ADSI_FLAG_DATAMODE) | newdatamode;
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if (writeformat)
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ast_set_write_format(chan, writeformat);
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if (readformat)
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ast_set_read_format(chan, readformat);
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if (!res)
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res = ast_safe_sleep(chan, 100 );
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return res;
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}
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static int _ast_adsi_transmit_message(struct ast_channel *chan, unsigned char *msg, int msglen, int msgtype)
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{
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return ast_adsi_transmit_message_full(chan, msg, msglen, msgtype, 1);
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}
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static inline int ccopy(unsigned char *dst, const unsigned char *src, int max)
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{
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int x=0;
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/* Carefully copy the requested data */
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while ((x < max) && src[x] && (src[x] != 0xff)) {
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dst[x] = src[x];
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x++;
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}
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return x;
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}
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static int _ast_adsi_load_soft_key(unsigned char *buf, int key, const char *llabel, const char *slabel, char *ret, int data)
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{
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int bytes=0;
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/* Abort if invalid key specified */
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if ((key < 2) || (key > 33))
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return -1;
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buf[bytes++] = ADSI_LOAD_SOFTKEY;
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/* Reserve for length */
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bytes++;
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/* Which key */
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buf[bytes++] = key;
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/* Carefully copy long label */
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bytes += ccopy(buf + bytes, (const unsigned char *)llabel, 18);
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/* Place delimiter */
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buf[bytes++] = 0xff;
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/* Short label */
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bytes += ccopy(buf + bytes, (const unsigned char *)slabel, 7);
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/* If specified, copy return string */
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if (ret) {
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/* Place delimiter */
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buf[bytes++] = 0xff;
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if (data)
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buf[bytes++] = ADSI_SWITCH_TO_DATA2;
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/* Carefully copy return string */
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bytes += ccopy(buf + bytes, (const unsigned char *)ret, 20);
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}
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/* Replace parameter length */
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buf[1] = bytes - 2;
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return bytes;
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}
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static int _ast_adsi_connect_session(unsigned char *buf, unsigned char *fdn, int ver)
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{
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int bytes=0;
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int x;
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/* Message type */
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buf[bytes++] = ADSI_CONNECT_SESSION;
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/* Reserve space for length */
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bytes++;
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if (fdn) {
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for (x=0;x<4;x++)
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buf[bytes++] = fdn[x];
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if (ver > -1)
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buf[bytes++] = ver & 0xff;
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}
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buf[1] = bytes - 2;
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return bytes;
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}
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static int _ast_adsi_download_connect(unsigned char *buf, char *service, unsigned char *fdn, unsigned char *sec, int ver)
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{
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int bytes=0;
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int x;
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|
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/* Message type */
|
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buf[bytes++] = ADSI_DOWNLOAD_CONNECT;
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/* Reserve space for length */
|
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bytes++;
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|
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/* Primary column */
|
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bytes+= ccopy(buf + bytes, (unsigned char *)service, 18);
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/* Delimiter */
|
|
buf[bytes++] = 0xff;
|
|
|
|
for (x=0;x<4;x++) {
|
|
buf[bytes++] = fdn[x];
|
|
}
|
|
for (x=0;x<4;x++)
|
|
buf[bytes++] = sec[x];
|
|
buf[bytes++] = ver & 0xff;
|
|
|
|
buf[1] = bytes - 2;
|
|
|
|
return bytes;
|
|
|
|
}
|
|
|
|
static int _ast_adsi_disconnect_session(unsigned char *buf)
|
|
{
|
|
int bytes=0;
|
|
|
|
/* Message type */
|
|
buf[bytes++] = ADSI_DISC_SESSION;
|
|
|
|
/* Reserve space for length */
|
|
bytes++;
|
|
|
|
buf[1] = bytes - 2;
|
|
return bytes;
|
|
|
|
}
|
|
|
|
static int _ast_adsi_query_cpeid(unsigned char *buf)
|
|
{
|
|
int bytes = 0;
|
|
buf[bytes++] = ADSI_QUERY_CPEID;
|
|
/* Reserve space for length */
|
|
bytes++;
|
|
buf[1] = bytes - 2;
|
|
return bytes;
|
|
}
|
|
|
|
static int _ast_adsi_query_cpeinfo(unsigned char *buf)
|
|
{
|
|
int bytes = 0;
|
|
buf[bytes++] = ADSI_QUERY_CONFIG;
|
|
/* Reserve space for length */
|
|
bytes++;
|
|
buf[1] = bytes - 2;
|
|
return bytes;
|
|
}
|
|
|
|
static int _ast_adsi_read_encoded_dtmf(struct ast_channel *chan, unsigned char *buf, int maxlen)
|
|
{
|
|
int bytes = 0;
|
|
int res;
|
|
unsigned char current = 0;
|
|
int gotstar = 0;
|
|
int pos = 0;
|
|
memset(buf, 0, sizeof(buf));
|
|
while(bytes <= maxlen) {
|
|
/* Wait up to a second for a digit */
|
|
res = ast_waitfordigit(chan, 1000);
|
|
if (!res)
|
|
break;
|
|
if (res == '*') {
|
|
gotstar = 1;
|
|
continue;
|
|
}
|
|
/* Ignore anything other than a digit */
|
|
if ((res < '0') || (res > '9'))
|
|
continue;
|
|
res -= '0';
|
|
if (gotstar)
|
|
res += 9;
|
|
if (pos) {
|
|
pos = 0;
|
|
buf[bytes++] = (res << 4) | current;
|
|
} else {
|
|
pos = 1;
|
|
current = res;
|
|
}
|
|
gotstar = 0;
|
|
}
|
|
return bytes;
|
|
}
|
|
|
|
static int _ast_adsi_get_cpeid(struct ast_channel *chan, unsigned char *cpeid, int voice)
|
|
{
|
|
unsigned char buf[256];
|
|
int bytes = 0;
|
|
int res;
|
|
bytes += ast_adsi_data_mode(buf);
|
|
ast_adsi_transmit_message_full(chan, buf, bytes, ADSI_MSG_DISPLAY, 0);
|
|
|
|
bytes = 0;
|
|
bytes += ast_adsi_query_cpeid(buf);
|
|
ast_adsi_transmit_message_full(chan, buf, bytes, ADSI_MSG_DISPLAY, 0);
|
|
|
|
/* Get response */
|
|
memset(buf, 0, sizeof(buf));
|
|
res = ast_adsi_read_encoded_dtmf(chan, cpeid, 4);
|
|
if (res != 4) {
|
|
ast_log(LOG_WARNING, "Got %d bytes back of encoded DTMF, expecting 4\n", res);
|
|
res = 0;
|
|
} else {
|
|
res = 1;
|
|
}
|
|
|
|
if (voice) {
|
|
bytes = 0;
|
|
bytes += ast_adsi_voice_mode(buf, 0);
|
|
ast_adsi_transmit_message_full(chan, buf, bytes, ADSI_MSG_DISPLAY, 0);
|
|
/* Ignore the resulting DTMF B announcing it's in voice mode */
|
|
ast_waitfordigit(chan, 1000);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static int _ast_adsi_get_cpeinfo(struct ast_channel *chan, int *width, int *height, int *buttons, int voice)
|
|
{
|
|
unsigned char buf[256];
|
|
int bytes = 0;
|
|
int res;
|
|
bytes += ast_adsi_data_mode(buf);
|
|
ast_adsi_transmit_message_full(chan, buf, bytes, ADSI_MSG_DISPLAY, 0);
|
|
|
|
bytes = 0;
|
|
bytes += ast_adsi_query_cpeinfo(buf);
|
|
ast_adsi_transmit_message_full(chan, buf, bytes, ADSI_MSG_DISPLAY, 0);
|
|
|
|
/* Get width */
|
|
memset(buf, 0, sizeof(buf));
|
|
res = ast_readstring(chan, (char *)buf, 2, 1000, 500, "");
|
|
if (res < 0)
|
|
return res;
|
|
if (strlen((char *)buf) != 2) {
|
|
ast_log(LOG_WARNING, "Got %d bytes of width, expecting 2\n", res);
|
|
res = 0;
|
|
} else {
|
|
res = 1;
|
|
}
|
|
if (width)
|
|
*width = atoi((char *)buf);
|
|
/* Get height */
|
|
memset(buf, 0, sizeof(buf));
|
|
if (res) {
|
|
res = ast_readstring(chan, (char *)buf, 2, 1000, 500, "");
|
|
if (res < 0)
|
|
return res;
|
|
if (strlen((char *)buf) != 2) {
|
|
ast_log(LOG_WARNING, "Got %d bytes of height, expecting 2\n", res);
|
|
res = 0;
|
|
} else {
|
|
res = 1;
|
|
}
|
|
if (height)
|
|
*height= atoi((char *)buf);
|
|
}
|
|
/* Get buttons */
|
|
memset(buf, 0, sizeof(buf));
|
|
if (res) {
|
|
res = ast_readstring(chan, (char *)buf, 1, 1000, 500, "");
|
|
if (res < 0)
|
|
return res;
|
|
if (strlen((char *)buf) != 1) {
|
|
ast_log(LOG_WARNING, "Got %d bytes of buttons, expecting 1\n", res);
|
|
res = 0;
|
|
} else {
|
|
res = 1;
|
|
}
|
|
if (buttons)
|
|
*buttons = atoi((char *)buf);
|
|
}
|
|
if (voice) {
|
|
bytes = 0;
|
|
bytes += ast_adsi_voice_mode(buf, 0);
|
|
ast_adsi_transmit_message_full(chan, buf, bytes, ADSI_MSG_DISPLAY, 0);
|
|
/* Ignore the resulting DTMF B announcing it's in voice mode */
|
|
ast_waitfordigit(chan, 1000);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static int _ast_adsi_data_mode(unsigned char *buf)
|
|
{
|
|
int bytes=0;
|
|
|
|
/* Message type */
|
|
buf[bytes++] = ADSI_SWITCH_TO_DATA;
|
|
|
|
/* Reserve space for length */
|
|
bytes++;
|
|
|
|
buf[1] = bytes - 2;
|
|
return bytes;
|
|
|
|
}
|
|
|
|
static int _ast_adsi_clear_soft_keys(unsigned char *buf)
|
|
{
|
|
int bytes=0;
|
|
|
|
/* Message type */
|
|
buf[bytes++] = ADSI_CLEAR_SOFTKEY;
|
|
|
|
/* Reserve space for length */
|
|
bytes++;
|
|
|
|
buf[1] = bytes - 2;
|
|
return bytes;
|
|
|
|
}
|
|
|
|
static int _ast_adsi_clear_screen(unsigned char *buf)
|
|
{
|
|
int bytes=0;
|
|
|
|
/* Message type */
|
|
buf[bytes++] = ADSI_CLEAR_SCREEN;
|
|
|
|
/* Reserve space for length */
|
|
bytes++;
|
|
|
|
buf[1] = bytes - 2;
|
|
return bytes;
|
|
|
|
}
|
|
|
|
static int _ast_adsi_voice_mode(unsigned char *buf, int when)
|
|
{
|
|
int bytes=0;
|
|
|
|
/* Message type */
|
|
buf[bytes++] = ADSI_SWITCH_TO_VOICE;
|
|
|
|
/* Reserve space for length */
|
|
bytes++;
|
|
|
|
buf[bytes++] = when & 0x7f;
|
|
|
|
buf[1] = bytes - 2;
|
|
return bytes;
|
|
|
|
}
|
|
|
|
static int _ast_adsi_available(struct ast_channel *chan)
|
|
{
|
|
int cpe = chan->adsicpe & 0xff;
|
|
if ((cpe == AST_ADSI_AVAILABLE) ||
|
|
(cpe == AST_ADSI_UNKNOWN))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static int _ast_adsi_download_disconnect(unsigned char *buf)
|
|
{
|
|
int bytes=0;
|
|
|
|
/* Message type */
|
|
buf[bytes++] = ADSI_DOWNLOAD_DISC;
|
|
|
|
/* Reserve space for length */
|
|
bytes++;
|
|
|
|
buf[1] = bytes - 2;
|
|
return bytes;
|
|
|
|
}
|
|
|
|
static int _ast_adsi_display(unsigned char *buf, int page, int line, int just, int wrap,
|
|
char *col1, char *col2)
|
|
{
|
|
int bytes=0;
|
|
|
|
/* Sanity check line number */
|
|
|
|
if (page) {
|
|
if (line > 4) return -1;
|
|
} else {
|
|
if (line > 33) return -1;
|
|
}
|
|
|
|
if (line < 1)
|
|
return -1;
|
|
/* Parameter type */
|
|
buf[bytes++] = ADSI_LOAD_VIRTUAL_DISP;
|
|
|
|
/* Reserve space for size */
|
|
bytes++;
|
|
|
|
/* Page and wrap indicator */
|
|
buf[bytes++] = ((page & 0x1) << 7) | ((wrap & 0x1) << 6) | (line & 0x3f);
|
|
|
|
/* Justification */
|
|
buf[bytes++] = (just & 0x3) << 5;
|
|
|
|
/* Omit highlight mode definition */
|
|
buf[bytes++] = 0xff;
|
|
|
|
/* Primary column */
|
|
bytes+= ccopy(buf + bytes, (unsigned char *)col1, 20);
|
|
|
|
/* Delimiter */
|
|
buf[bytes++] = 0xff;
|
|
|
|
/* Secondary column */
|
|
bytes += ccopy(buf + bytes, (unsigned char *)col2, 20);
|
|
|
|
/* Update length */
|
|
buf[1] = bytes - 2;
|
|
|
|
return bytes;
|
|
|
|
}
|
|
|
|
static int _ast_adsi_input_control(unsigned char *buf, int page, int line, int display, int format, int just)
|
|
{
|
|
int bytes=0;
|
|
|
|
if (page) {
|
|
if (line > 4) return -1;
|
|
} else {
|
|
if (line > 33) return -1;
|
|
}
|
|
|
|
if (line < 1)
|
|
return -1;
|
|
|
|
buf[bytes++] = ADSI_INPUT_CONTROL;
|
|
bytes++;
|
|
buf[bytes++] = ((page & 1) << 7) | (line & 0x3f);
|
|
buf[bytes++] = ((display & 1) << 7) | ((just & 0x3) << 4) | (format & 0x7);
|
|
|
|
buf[1] = bytes - 2;
|
|
return bytes;
|
|
|
|
}
|
|
|
|
static int _ast_adsi_input_format(unsigned char *buf, int num, int dir, int wrap, char *format1, char *format2)
|
|
{
|
|
int bytes = 0;
|
|
|
|
if (!strlen((char *)format1))
|
|
return -1;
|
|
|
|
buf[bytes++] = ADSI_INPUT_FORMAT;
|
|
bytes++;
|
|
buf[bytes++] = ((dir & 1) << 7) | ((wrap & 1) << 6) | (num & 0x7);
|
|
bytes += ccopy(buf + bytes, (unsigned char *)format1, 20);
|
|
buf[bytes++] = 0xff;
|
|
if (format2 && strlen((char *)format2)) {
|
|
bytes += ccopy(buf + bytes, (unsigned char *)format2, 20);
|
|
}
|
|
buf[1] = bytes - 2;
|
|
return bytes;
|
|
}
|
|
|
|
static int _ast_adsi_set_keys(unsigned char *buf, unsigned char *keys)
|
|
{
|
|
int bytes=0;
|
|
int x;
|
|
/* Message type */
|
|
buf[bytes++] = ADSI_INIT_SOFTKEY_LINE;
|
|
/* Space for size */
|
|
bytes++;
|
|
/* Key definitions */
|
|
for (x=0;x<6;x++)
|
|
buf[bytes++] = (keys[x] & 0x3f) ? keys[x] : (keys[x] | 0x1);
|
|
buf[1] = bytes - 2;
|
|
return bytes;
|
|
}
|
|
|
|
static int _ast_adsi_set_line(unsigned char *buf, int page, int line)
|
|
{
|
|
int bytes=0;
|
|
|
|
/* Sanity check line number */
|
|
|
|
if (page) {
|
|
if (line > 4) return -1;
|
|
} else {
|
|
if (line > 33) return -1;
|
|
}
|
|
|
|
if (line < 1)
|
|
return -1;
|
|
/* Parameter type */
|
|
buf[bytes++] = ADSI_LINE_CONTROL;
|
|
|
|
/* Reserve space for size */
|
|
bytes++;
|
|
|
|
/* Page and line */
|
|
buf[bytes++] = ((page & 0x1) << 7) | (line & 0x3f);
|
|
|
|
buf[1] = bytes - 2;
|
|
return bytes;
|
|
|
|
};
|
|
|
|
static int total = 0;
|
|
static int speeds = 0;
|
|
|
|
static int _ast_adsi_channel_restore(struct ast_channel *chan)
|
|
{
|
|
unsigned char dsp[256];
|
|
int bytes;
|
|
int x;
|
|
unsigned char keyd[6];
|
|
|
|
memset(dsp, 0, sizeof(dsp));
|
|
|
|
/* Start with initial display setup */
|
|
bytes = 0;
|
|
bytes += ast_adsi_set_line(dsp + bytes, ADSI_INFO_PAGE, 1);
|
|
|
|
/* Prepare key setup messages */
|
|
|
|
if (speeds) {
|
|
memset(keyd, 0, sizeof(keyd));
|
|
for (x=0;x<speeds;x++) {
|
|
keyd[x] = ADSI_SPEED_DIAL + x;
|
|
}
|
|
bytes += ast_adsi_set_keys(dsp + bytes, keyd);
|
|
}
|
|
ast_adsi_transmit_message_full(chan, dsp, bytes, ADSI_MSG_DISPLAY, 0);
|
|
return 0;
|
|
|
|
}
|
|
|
|
static int _ast_adsi_print(struct ast_channel *chan, char **lines, int *aligns, int voice)
|
|
{
|
|
unsigned char buf[4096];
|
|
int bytes=0;
|
|
int res;
|
|
int x;
|
|
for(x=0;lines[x];x++)
|
|
bytes += ast_adsi_display(buf + bytes, ADSI_INFO_PAGE, x+1, aligns[x], 0, lines[x], "");
|
|
bytes += ast_adsi_set_line(buf + bytes, ADSI_INFO_PAGE, 1);
|
|
if (voice) {
|
|
bytes += ast_adsi_voice_mode(buf + bytes, 0);
|
|
}
|
|
res = ast_adsi_transmit_message_full(chan, buf, bytes, ADSI_MSG_DISPLAY, 0);
|
|
if (voice) {
|
|
/* Ignore the resulting DTMF B announcing it's in voice mode */
|
|
ast_waitfordigit(chan, 1000);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static int _ast_adsi_load_session(struct ast_channel *chan, unsigned char *app, int ver, int data)
|
|
{
|
|
unsigned char dsp[256];
|
|
int bytes;
|
|
int res;
|
|
char resp[2];
|
|
|
|
memset(dsp, 0, sizeof(dsp));
|
|
|
|
/* Connect to session */
|
|
bytes = 0;
|
|
bytes += ast_adsi_connect_session(dsp + bytes, app, ver);
|
|
|
|
if (data)
|
|
bytes += ast_adsi_data_mode(dsp + bytes);
|
|
|
|
/* Prepare key setup messages */
|
|
if (ast_adsi_transmit_message_full(chan, dsp, bytes, ADSI_MSG_DISPLAY, 0))
|
|
return -1;
|
|
if (app) {
|
|
res = ast_readstring(chan, resp, 1, 1200, 1200, "");
|
|
if (res < 0)
|
|
return -1;
|
|
if (res) {
|
|
ast_debug(1, "No response from CPE about version. Assuming not there.\n");
|
|
return 0;
|
|
}
|
|
if (!strcmp(resp, "B")) {
|
|
ast_debug(1, "CPE has script '%s' version %d already loaded\n", app, ver);
|
|
return 1;
|
|
} else if (!strcmp(resp, "A")) {
|
|
ast_debug(1, "CPE hasn't script '%s' version %d already loaded\n", app, ver);
|
|
} else {
|
|
ast_log(LOG_WARNING, "Unexpected CPE response to script query: %s\n", resp);
|
|
}
|
|
} else
|
|
return 1;
|
|
return 0;
|
|
|
|
}
|
|
|
|
static int _ast_adsi_unload_session(struct ast_channel *chan)
|
|
{
|
|
unsigned char dsp[256];
|
|
int bytes;
|
|
|
|
memset(dsp, 0, sizeof(dsp));
|
|
|
|
/* Connect to session */
|
|
bytes = 0;
|
|
bytes += ast_adsi_disconnect_session(dsp + bytes);
|
|
bytes += ast_adsi_voice_mode(dsp + bytes, 0);
|
|
|
|
/* Prepare key setup messages */
|
|
if (ast_adsi_transmit_message_full(chan, dsp, bytes, ADSI_MSG_DISPLAY, 0))
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
static int str2align(char *s)
|
|
{
|
|
if (!strncasecmp(s, "l", 1))
|
|
return ADSI_JUST_LEFT;
|
|
else if (!strncasecmp(s, "r", 1))
|
|
return ADSI_JUST_RIGHT;
|
|
else if (!strncasecmp(s, "i", 1))
|
|
return ADSI_JUST_IND;
|
|
else
|
|
return ADSI_JUST_CENT;
|
|
}
|
|
|
|
static void init_state(void)
|
|
{
|
|
int x;
|
|
|
|
for (x=0;x<ADSI_MAX_INTRO;x++)
|
|
aligns[x] = ADSI_JUST_CENT;
|
|
ast_copy_string(intro[0], "Welcome to the", sizeof(intro[0]));
|
|
ast_copy_string(intro[1], "Asterisk", sizeof(intro[1]));
|
|
ast_copy_string(intro[2], "Open Source PBX", sizeof(intro[2]));
|
|
total = 3;
|
|
speeds = 0;
|
|
for (x=3;x<ADSI_MAX_INTRO;x++)
|
|
intro[x][0] = '\0';
|
|
memset(speeddial, 0, sizeof(speeddial));
|
|
alignment = ADSI_JUST_CENT;
|
|
}
|
|
|
|
static void adsi_load(void)
|
|
{
|
|
int x;
|
|
struct ast_config *conf;
|
|
struct ast_variable *v;
|
|
struct ast_flags config_flags = { 0 };
|
|
char *name, *sname;
|
|
init_state();
|
|
conf = ast_config_load("adsi.conf", config_flags);
|
|
if (conf) {
|
|
x=0;
|
|
for (v = ast_variable_browse(conf, "intro"); v; v = v->next) {
|
|
if (!strcasecmp(v->name, "alignment"))
|
|
alignment = str2align(v->value);
|
|
else if (!strcasecmp(v->name, "greeting")) {
|
|
if (x < ADSI_MAX_INTRO) {
|
|
aligns[x] = alignment;
|
|
ast_copy_string(intro[x], v->value, sizeof(intro[x]));
|
|
x++;
|
|
}
|
|
} else if (!strcasecmp(v->name, "maxretries")) {
|
|
if (atoi(v->value) > 0)
|
|
maxretries = atoi(v->value);
|
|
}
|
|
}
|
|
if (x)
|
|
total = x;
|
|
x = 0;
|
|
for (v = ast_variable_browse(conf, "speeddial"); v; v = v->next) {
|
|
char *stringp = v->value;
|
|
name = strsep(&stringp, ",");
|
|
sname = strsep(&stringp, ",");
|
|
if (!sname)
|
|
sname = name;
|
|
if (x < ADSI_MAX_SPEED_DIAL) {
|
|
ast_copy_string(speeddial[x][0], v->name, sizeof(speeddial[x][0]));
|
|
ast_copy_string(speeddial[x][1], name, 18);
|
|
ast_copy_string(speeddial[x][2], sname, 7);
|
|
x++;
|
|
}
|
|
}
|
|
if (x)
|
|
speeds = x;
|
|
ast_config_destroy(conf);
|
|
}
|
|
}
|
|
|
|
static int reload(void)
|
|
{
|
|
adsi_load();
|
|
return 0;
|
|
}
|
|
|
|
static int load_module(void)
|
|
{
|
|
adsi_load();
|
|
|
|
ast_adsi_begin_download = _ast_adsi_begin_download;
|
|
ast_adsi_end_download = _ast_adsi_end_download;
|
|
ast_adsi_channel_restore = _ast_adsi_channel_restore;
|
|
ast_adsi_print = _ast_adsi_print;
|
|
ast_adsi_load_session = _ast_adsi_load_session;
|
|
ast_adsi_unload_session = _ast_adsi_unload_session;
|
|
ast_adsi_transmit_message = _ast_adsi_transmit_message;
|
|
ast_adsi_transmit_message_full = _ast_adsi_transmit_message_full;
|
|
ast_adsi_read_encoded_dtmf = _ast_adsi_read_encoded_dtmf;
|
|
ast_adsi_connect_session = _ast_adsi_connect_session;
|
|
ast_adsi_query_cpeid = _ast_adsi_query_cpeid;
|
|
ast_adsi_query_cpeinfo = _ast_adsi_query_cpeinfo;
|
|
ast_adsi_get_cpeid = _ast_adsi_get_cpeid;
|
|
ast_adsi_get_cpeinfo = _ast_adsi_get_cpeinfo;
|
|
ast_adsi_download_connect = _ast_adsi_download_connect;
|
|
ast_adsi_disconnect_session = _ast_adsi_disconnect_session;
|
|
ast_adsi_download_disconnect = _ast_adsi_download_disconnect;
|
|
ast_adsi_data_mode = _ast_adsi_data_mode;
|
|
ast_adsi_clear_soft_keys = _ast_adsi_clear_soft_keys;
|
|
ast_adsi_clear_screen = _ast_adsi_clear_screen;
|
|
ast_adsi_voice_mode = _ast_adsi_voice_mode;
|
|
ast_adsi_available = _ast_adsi_available;
|
|
ast_adsi_display = _ast_adsi_display;
|
|
ast_adsi_set_line = _ast_adsi_set_line;
|
|
ast_adsi_load_soft_key = _ast_adsi_load_soft_key;
|
|
ast_adsi_set_keys = _ast_adsi_set_keys;
|
|
ast_adsi_input_control = _ast_adsi_input_control;
|
|
ast_adsi_input_format = _ast_adsi_input_format;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int unload_module(void)
|
|
{
|
|
/* Can't unload this once we're loaded */
|
|
return -1;
|
|
}
|
|
|
|
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "ADSI Resource",
|
|
.load = load_module,
|
|
.unload = unload_module,
|
|
.reload = reload,
|
|
);
|