From d6161ddb613b53db3062b4a3afdc1678f61d2aeb Mon Sep 17 00:00:00 2001 From: Denis Kenzior Date: Fri, 23 Oct 2009 12:08:48 -0500 Subject: [PATCH] Add basic atmodem gprs context implementation --- Makefile.am | 3 +- drivers/atmodem/atmodem.c | 2 + drivers/atmodem/atmodem.h | 3 + drivers/atmodem/gprs-context.c | 270 +++++++++++++++++++++++++++++++++ 4 files changed, 277 insertions(+), 1 deletion(-) create mode 100644 drivers/atmodem/gprs-context.c diff --git a/Makefile.am b/Makefile.am index bed363ac..966a6303 100644 --- a/Makefile.am +++ b/Makefile.am @@ -113,7 +113,8 @@ builtin_sources += $(gatchat_sources) \ drivers/atmodem/vendor.h \ drivers/atmodem/atutil.h \ drivers/atmodem/atutil.c \ - drivers/atmodem/gprs.c + drivers/atmodem/gprs.c \ + drivers/atmodem/gprs-context.c builtin_modules += calypsomodem builtin_sources += drivers/atmodem/atutil.h \ diff --git a/drivers/atmodem/atmodem.c b/drivers/atmodem/atmodem.c index c34e6bf1..71cafcb8 100644 --- a/drivers/atmodem/atmodem.c +++ b/drivers/atmodem/atmodem.c @@ -49,6 +49,7 @@ static int atmodem_init(void) at_cbs_init(); at_call_volume_init(); at_gprs_init(); + at_gprs_context_init(); return 0; } @@ -70,6 +71,7 @@ static void atmodem_exit(void) at_cbs_exit(); at_call_volume_exit(); at_gprs_exit(); + at_gprs_context_exit(); } OFONO_PLUGIN_DEFINE(atmodem, "AT modem driver", VERSION, diff --git a/drivers/atmodem/atmodem.h b/drivers/atmodem/atmodem.h index 55b0b68f..8d567088 100644 --- a/drivers/atmodem/atmodem.h +++ b/drivers/atmodem/atmodem.h @@ -65,3 +65,6 @@ extern void at_call_volume_exit(); extern void at_gprs_init(); extern void at_gprs_exit(); + +extern void at_gprs_context_init(); +extern void at_gprs_context_exit(); diff --git a/drivers/atmodem/gprs-context.c b/drivers/atmodem/gprs-context.c new file mode 100644 index 00000000..23ad3dba --- /dev/null +++ b/drivers/atmodem/gprs-context.c @@ -0,0 +1,270 @@ +/* + * + * oFono - Open Source Telephony + * + * Copyright (C) 2008-2009 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 + +#define _GNU_SOURCE +#include +#include +#include + +#include + +#include +#include +#include + +#include "gatchat.h" +#include "gatresult.h" + +#include "atmodem.h" + +static const char *cgdcont_prefix[] = { "+CGDCONT:", NULL }; +static const char *cgact_prefix[] = { "+CGACT:", NULL }; +static const char *none_prefix[] = { NULL }; + +struct gprs_context_data { + GAtChat *chat; + unsigned active_context; +}; + +static void at_cgact_down_cb(gboolean ok, GAtResult *result, gpointer user_data) +{ + struct cb_data *cbd = user_data; + ofono_gprs_context_cb_t cb = cbd->cb; + struct ofono_gprs_context *gc = cbd->user; + struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc); + struct ofono_error error; + + if (ok) + gcd->active_context = 0; + + dump_response("cgact_down_cb", ok, result); + decode_at_error(&error, g_at_result_final_response(result)); + + cb(&error, cbd->data); +} + +static void at_cgact_up_cb(gboolean ok, GAtResult *result, gpointer user_data) +{ + struct cb_data *cbd = user_data; + ofono_gprs_context_cb_t cb = cbd->cb; + struct ofono_error error; + + dump_response("cgact_up_cb", ok, result); + decode_at_error(&error, g_at_result_final_response(result)); + + cb(&error, cbd->data); +} + +static void at_cgdcont_cb(gboolean ok, GAtResult *result, gpointer user_data) +{ + struct cb_data *cbd = user_data; + ofono_gprs_context_cb_t cb = cbd->cb; + struct ofono_gprs_context *gc = cbd->user; + struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc); + struct cb_data *ncbd; + char buf[64]; + + dump_response("cgdcont_cb", ok, result); + + if (!ok) { + struct ofono_error error; + + gcd->active_context = 0; + + decode_at_error(&error, g_at_result_final_response(result)); + cb(&error, cbd->data); + return; + } + + ncbd = g_memdup(cbd, sizeof(struct cb_data)); + + sprintf(buf, "AT+CGACT=1,%u", gcd->active_context); + + if (g_at_chat_send(gcd->chat, buf, none_prefix, + at_cgact_up_cb, ncbd, g_free) > 0) + return; + +error: + if (ncbd) + g_free(ncbd); + + CALLBACK_WITH_FAILURE(cb, cbd->data); +} + +static void at_gprs_activate_primary(struct ofono_gprs_context *gc, + const struct ofono_gprs_primary_context *ctx, + ofono_gprs_context_cb_t cb, void *data) +{ + struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc); + struct cb_data *cbd = cb_data_new(cb, data); + char buf[OFONO_GPRS_MAX_APN_LENGTH + 128]; + int len; + + if (!cbd) + goto error; + + gcd->active_context = ctx->cid; + + cbd->user = gc; + + /* TODO: Handle username / password fields */ + len = sprintf(buf, "AT+CGDCONT=%u,\"IP\"", ctx->cid); + + if (ctx->apn) + snprintf(buf + len, sizeof(buf) - len - 3, ",\"%s\"", + ctx->apn); + + if (g_at_chat_send(gcd->chat, buf, none_prefix, + at_cgdcont_cb, cbd, g_free) > 0) + return; +error: + if (cbd) + g_free(cbd); + + CALLBACK_WITH_FAILURE(cb, data); +} + +static void at_gprs_deactivate_primary(struct ofono_gprs_context *gc, + unsigned int id, + ofono_gprs_context_cb_t cb, void *data) +{ + struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc); + struct cb_data *cbd = cb_data_new(cb, data); + char buf[64]; + + if (!cbd) + goto error; + + cbd->user = gc; + + sprintf(buf, "AT+CGACT=0,%u", id); + + if (g_at_chat_send(gcd->chat, buf, none_prefix, + at_cgact_down_cb, cbd, g_free) > 0) + return; + +error: + if (cbd) + g_free(cbd); + + CALLBACK_WITH_FAILURE(cb, data); +} + +static void at_cgact_read_cb(gboolean ok, GAtResult *result, + gpointer user_data) +{ + struct ofono_gprs_context *gc = user_data; + struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc); + gint cid, state; + GAtResultIter iter; + + dump_response("cgact_read_cb", ok, result); + + if (!ok) + return; + + while (g_at_result_iter_next(&iter, "+CGACT:")) { + if (!g_at_result_iter_next_number(&iter, &cid)) + continue; + + if ((unsigned int) cid != gcd->active_context) + continue; + + if (!g_at_result_iter_next_number(&iter, &state)) + continue; + + if (state == 1) + continue; + + ofono_gprs_context_deactivated(gc, gcd->active_context); + gcd->active_context = 0; + + break; + } +} + +static void cgev_notify(GAtResult *result, gpointer user_data) +{ + struct ofono_gprs_context *gc = user_data; + struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc); + GAtResultIter iter; + const char *event; + + if (!g_at_result_iter_next(&iter, "+CGEV:")) + return; + + if (!g_at_result_iter_next_unquoted_string(&iter, &event)) + return; + + if (g_str_has_prefix(event, "NW REACT ") || + g_str_has_prefix(event, "NW DEACT ") || + g_str_has_prefix(event, "ME DEACT ")) { + /* Ask what primary contexts are active now */ + g_at_chat_send(gcd->chat, "AT+CGACT?", cgact_prefix, + at_cgact_read_cb, gc, NULL); + + return; + } +} + +static int at_gprs_context_probe(struct ofono_gprs_context *gc, + unsigned int vendor, void *data) +{ + GAtChat *chat = data; + struct gprs_context_data *gcd; + + gcd = g_new0(struct gprs_context_data, 1); + gcd->chat = chat; + + ofono_gprs_context_set_data(gc, gcd); + + return 0; +} + +static void at_gprs_context_remove(struct ofono_gprs_context *gc) +{ + struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc); + + ofono_gprs_context_set_data(gc, NULL); + g_free(gcd); +} + +static struct ofono_gprs_context_driver driver = { + .name = "atmodem", + .probe = at_gprs_context_probe, + .remove = at_gprs_context_remove, + .activate_primary = at_gprs_activate_primary, + .deactivate_primary = at_gprs_deactivate_primary, +}; + +void at_gprs_context_init() +{ + ofono_gprs_context_driver_register(&driver); +} + +void at_gprs_context_exit() +{ + ofono_gprs_context_driver_unregister(&driver); +}