107 lines
3.3 KiB
C
107 lines
3.3 KiB
C
/* ****************************************************************************
|
|
* link/seven/init.c -- initialize a Protocol 7.00 link handle.
|
|
* Copyright (C) 2016-2017 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
|
|
*
|
|
* This file is part of libcasio.
|
|
* libcasio is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation; either version 3.0 of the License,
|
|
* or (at your option) any later version.
|
|
*
|
|
* libcasio is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
* See the GNU Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with libcasio; if not, see <http://www.gnu.org/licenses/>.
|
|
* ************************************************************************* */
|
|
#include "../link.h"
|
|
|
|
/**
|
|
* casio_seven_start:
|
|
* Start the communication.
|
|
*
|
|
* @arg handle the handle.
|
|
* @return the error, if any.
|
|
*/
|
|
|
|
int CASIO_EXPORT casio_seven_start(casio_link_t *handle)
|
|
{
|
|
/* start */
|
|
int err = 0;
|
|
if (~handle->casio_link_flags & casio_linkflag_active)
|
|
return (0);
|
|
msg((ll_info, "Be active, live!"));
|
|
|
|
/* send initial check */
|
|
if (handle->casio_link_flags & casio_linkflag_check) {
|
|
msg((ll_info, "Sending initial check packet."));
|
|
if ((err = casio_seven_send_ini_check(handle))) {
|
|
msg((ll_fatal, "couldn't send check/didn't receive answer"));
|
|
return (err);
|
|
} else if (response.casio_seven_packet_type != casio_seven_type_ack) {
|
|
msg((ll_fatal, "received packet wasn't ack, ask your dentist"));
|
|
return (casio_error_unknown);
|
|
}
|
|
} elsemsg((ll_info, "Initial check is for noobz."));
|
|
|
|
/* discover environment */
|
|
if (handle->casio_link_flags & casio_linkflag_disc) {
|
|
msg((ll_info, "Checking the environment."));
|
|
if ((err = casio_seven_send_cmdsys_getinfo(handle))) {
|
|
msg((ll_fatal, "couldn't send env query/receive answer"));
|
|
return (err);
|
|
} else if (response.casio_seven_packet_type != casio_seven_type_ack
|
|
|| !response.casio_seven_packet_extended) {
|
|
msg((ll_fatal,
|
|
"response to env query wasn't an extended ack packet"));
|
|
return (casio_error_unknown);
|
|
}
|
|
}
|
|
|
|
/* save server, get environment based on hardware id */
|
|
handle->casio_link_info = response.casio_seven_packet_info;
|
|
casio_seven_getenv(&handle->casio_link_env,
|
|
handle->casio_link_info.casio_link_info_hwid);
|
|
msg((ll_info, "Environment is '%s'",
|
|
handle->casio_link_env.casio_seven_env_name));
|
|
|
|
/* no error */
|
|
return (0);
|
|
}
|
|
|
|
/**
|
|
* casio_seven_end:
|
|
* End the communication.
|
|
*
|
|
* @arg handle the handle.
|
|
* @return the error code (0 if none).
|
|
*/
|
|
|
|
int CASIO_EXPORT casio_seven_end(casio_link_t *handle)
|
|
{
|
|
int err;
|
|
|
|
if (~handle->casio_link_flags
|
|
& (casio_linkflag_active | casio_linkflag_term))
|
|
return (0);
|
|
if ( handle->casio_link_flags
|
|
& (casio_linkflag_ended))
|
|
return (0);
|
|
|
|
/* send the termination packet */
|
|
msg((ll_info, "we were active, send sending terminate packet"));
|
|
err = casio_seven_send_term(handle);
|
|
if (err) return (err);
|
|
|
|
/* check ack */
|
|
if (response.casio_seven_packet_type != casio_seven_type_ack) {
|
|
msg((ll_warn, "answer to terminate packet wasn't ack!"));
|
|
return (casio_error_unknown);
|
|
}
|
|
|
|
/* no error! */
|
|
return (0);
|
|
}
|