From a9cc215bc50222878ddb1403fbd93cc2906c3709 Mon Sep 17 00:00:00 2001 From: Nicolas Bertrand Date: Mon, 16 Apr 2012 17:10:21 +0200 Subject: [PATCH] speedup: Add speedup driver to handle USSD --- drivers/speedupmodem/speedupmodem.c | 49 ++++++ drivers/speedupmodem/speedupmodem.h | 25 ++++ drivers/speedupmodem/ussd.c | 224 ++++++++++++++++++++++++++++ 3 files changed, 298 insertions(+) create mode 100644 drivers/speedupmodem/speedupmodem.c create mode 100644 drivers/speedupmodem/speedupmodem.h create mode 100644 drivers/speedupmodem/ussd.c diff --git a/drivers/speedupmodem/speedupmodem.c b/drivers/speedupmodem/speedupmodem.c new file mode 100644 index 00000000..d31c3242 --- /dev/null +++ b/drivers/speedupmodem/speedupmodem.c @@ -0,0 +1,49 @@ +/* + * + * oFono - Open Source Telephony + * + * Copyright (C) 2008-2012 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +#ifdef HAVE_CONFIG_H +#include +#endif + +#include +#include + +#define OFONO_API_SUBJECT_TO_CHANGE +#include +#include + +#include "speedupmodem.h" + +static int speedupmodem_init(void) +{ + speedup_ussd_init(); + + return 0; +} + +static void speedupmodem_exit(void) +{ + speedup_ussd_exit(); +} + +OFONO_PLUGIN_DEFINE(speedupmodem, "SpeedUp modem driver", VERSION, + OFONO_PLUGIN_PRIORITY_DEFAULT, + speedupmodem_init, speedupmodem_exit) diff --git a/drivers/speedupmodem/speedupmodem.h b/drivers/speedupmodem/speedupmodem.h new file mode 100644 index 00000000..38ad0138 --- /dev/null +++ b/drivers/speedupmodem/speedupmodem.h @@ -0,0 +1,25 @@ +/* + * + * oFono - Open Source Telephony + * + * Copyright (C) 2008-2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +#include + +extern void speedup_ussd_init(void); +extern void speedup_ussd_exit(void); diff --git a/drivers/speedupmodem/ussd.c b/drivers/speedupmodem/ussd.c new file mode 100644 index 00000000..02d3487c --- /dev/null +++ b/drivers/speedupmodem/ussd.c @@ -0,0 +1,224 @@ +/* + * + * oFono - Open Source Telephony + * + * Copyright (C) 2008-2012 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +#ifdef HAVE_CONFIG_H +#include +#endif + +#include +#include + +#include + +#include +#include +#include +#include "util.h" + +#include "gatchat.h" + +#include "speedupmodem.h" + +static const char *cusd_prefix[] = { "+CUSD:", NULL }; +static const char *none_prefix[] = { NULL }; + +struct ussd_data { + GAtChat *chat; +}; + +static void cusd_parse(GAtResult *result, struct ofono_ussd *ussd) +{ + GAtResultIter iter; + int status, dcs; + const char *content; + unsigned char msg[160]; + const unsigned char *msg_ptr = NULL; + long msg_len; + + g_at_result_iter_init(&iter, result); + + if (!g_at_result_iter_next(&iter, "+CUSD:")) + return; + + if (!g_at_result_iter_next_number(&iter, &status)) + return; + + if (!g_at_result_iter_next_string(&iter, &content)) + goto out; + + if (!g_at_result_iter_next_number(&iter, &dcs)) + dcs = 0; + + msg_ptr = decode_hex_own_buf(content, -1, &msg_len, 0, msg); + +out: + ofono_ussd_notify(ussd, status, dcs, msg_ptr, msg_ptr ? msg_len : 0); +} + +static void cusd_request_cb(gboolean ok, GAtResult *result, gpointer user_data) +{ + struct cb_data *cbd = user_data; + ofono_ussd_cb_t cb = cbd->cb; + struct ofono_ussd *ussd = cbd->user; + struct ofono_error error; + + decode_at_error(&error, g_at_result_final_response(result)); + + cb(&error, cbd->data); + + cusd_parse(result, ussd); +} + +static void speedup_ussd_request(struct ofono_ussd *ussd, int dcs, + const unsigned char *pdu, int len, + ofono_ussd_cb_t cb, void *user_data) +{ + struct ussd_data *data = ofono_ussd_get_data(ussd); + struct cb_data *cbd = cb_data_new(cb, user_data); + char buf[512], coded_buf[182]; + long written; + + cbd->user = ussd; + + unpack_7bit_own_buf(pdu, len, 0, TRUE, sizeof(coded_buf), + &written, 0, (unsigned char *)coded_buf); + if (written < 1) + goto error; + + snprintf(buf, sizeof(buf), "AT+CUSD=1,\"%.*s\",%d", (int) written, + coded_buf, dcs); + + if (g_at_chat_send(data->chat, buf, cusd_prefix, + cusd_request_cb, cbd, g_free) > 0) + return; + +error: + g_free(cbd); + + CALLBACK_WITH_FAILURE(cb, user_data); +} + +static void cusd_cancel_cb(gboolean ok, GAtResult *result, gpointer user_data) +{ + struct cb_data *cbd = user_data; + ofono_ussd_cb_t cb = cbd->cb; + struct ofono_error error; + + decode_at_error(&error, g_at_result_final_response(result)); + + /* + * All errors and notifications arrive unexpected and + * thus just reset the state here. This is safer than + * getting stuck in a dead-lock. + */ + error.type = OFONO_ERROR_TYPE_NO_ERROR; + error.error = 0; + + cb(&error, cbd->data); +} + +static void speedup_ussd_cancel(struct ofono_ussd *ussd, + ofono_ussd_cb_t cb, void *user_data) +{ + struct ussd_data *data = ofono_ussd_get_data(ussd); + struct cb_data *cbd = cb_data_new(cb, user_data); + + cbd->user = data; + + if (g_at_chat_send(data->chat, "AT+CUSD=2", none_prefix, + cusd_cancel_cb, cbd, g_free) > 0) + return; + + g_free(cbd); + + CALLBACK_WITH_FAILURE(cb, user_data); +} + +static void cusd_notify(GAtResult *result, gpointer user_data) +{ + struct ofono_ussd *ussd = user_data; + + cusd_parse(result, ussd); +} + +static void cusd_register(gboolean ok, GAtResult *result, gpointer user_data) +{ + struct ofono_ussd *ussd = user_data; + struct ussd_data *data = ofono_ussd_get_data(ussd); + + if (!ok) { + ofono_error("Could not enable CUSD notifications"); + return; + } + + g_at_chat_register(data->chat, "+CUSD:", cusd_notify, + FALSE, ussd, NULL); + + ofono_ussd_register(ussd); +} + +static int speedup_ussd_probe(struct ofono_ussd *ussd, + unsigned int vendor, void *user) +{ + GAtChat *chat = user; + struct ussd_data *data; + + data = g_try_new0(struct ussd_data, 1); + if (data == NULL) + return -ENOMEM; + + data->chat = g_at_chat_clone(chat); + + ofono_ussd_set_data(ussd, data); + + g_at_chat_send(data->chat, "AT+CUSD=1", none_prefix, + cusd_register, ussd, NULL); + + return 0; +} + +static void speedup_ussd_remove(struct ofono_ussd *ussd) +{ + struct ussd_data *data = ofono_ussd_get_data(ussd); + + ofono_ussd_set_data(ussd, NULL); + + g_at_chat_unref(data->chat); + g_free(data); +} + +static struct ofono_ussd_driver driver = { + .name = "speedupmodem", + .probe = speedup_ussd_probe, + .remove = speedup_ussd_remove, + .request = speedup_ussd_request, + .cancel = speedup_ussd_cancel, +}; + +void speedup_ussd_init(void) +{ + ofono_ussd_driver_register(&driver); +} + +void speedup_ussd_exit(void) +{ + ofono_ussd_driver_unregister(&driver); +}