Hello ofono guys,
I've got a embedded device with SIM5216E modem. Based on the previous
work done by my colleague Jean-Christian de Rivaz (you can see previous
talk on this mailing list about this modem "Some experiments with the
SIMCOM SIM5216E modem on a ARM926 board"), the simcom AT doc, my
MacGyver kit and my resourcefulness, i do a patch for ofono to support
this modem (and maybe others models).
I attach the patch to this email.
While making this patch, I wondered about that :
* After entering a pin code, ofono goes too fast and checks too
early the sim pin status with "CPIN?". The ME responds "CME Error : 14
(SIM busy)" and ofono stops here. Ofono doesn't send more CPIN? or
intercept the "+CPIN: READY" that the modem send after a while when SIM
is back online. So, I use the same workaround that for ZTE : sending
severals AT+CPIN? commands during 20 seconds until having "+CPIN:
READY". It works well but as my modem sends the "+CPIN: READY" from its
own, I think I can use another mechanism more "standard" in ofono, isn't
it ?
* I want to save power when i doesn't need the modem. So, i guess it
is the purpose of the "org.ofono.Modem.SetProperty" dbus method and the
setting "Powered". When I set "Powered" to "False", I see ofono calls
the "disable" callback of "struct ofono_modem_driver", so I think its
here I must write the famous CFUN command(s) to put modem down. In the
AT doc for SIMCOM, I have severals CFUN values for, i think, disable
purpose :
0 – minimum functionality
4 – disable phone both transmit and receive RF circuits
7 – Offline Mode
For now, i do a CFUN=4 but maybe i need to do more and add CFUN=7 ? Or
maybe use CFUN=0 ?
Can the "disable" callback be called by ofono in other case and so, i
must only do a CFUN=4 ?
* I would like to do a reset of the modem at start and at end of
ofono life (with AT+CFUN=6 or AT+CRESET). The purpose is having a modem
always in init state for ofono and the others programs. Do you think its
a good idea ?
Best regards,
Anthony Viallard.
Add SIMCOM support.
I develop this with the SIM5216E chipset. SMS and GPRS work.
I don't do the voice call part because i don't need it.
Signed-off-by: Anthony Viallard <homer242 at gmail.com>
--- ofono-1.6.orig/Makefile.am 2012-04-20 21:06:29.000000000 +0200
+++ ofono-1.6/Makefile.am 2013-01-21 17:17:48.089627277 +0100
@@ -371,6 +371,9 @@ builtin_sources += plugins/samsung.c
builtin_modules += sim900
builtin_sources += plugins/sim900.c
+builtin_modules += simcom
+builtin_sources += plugins/simcom.c
+
if BLUETOOTH
builtin_modules += bluetooth
builtin_sources += plugins/bluetooth.c plugins/bluetooth.h
--- ofono-1.6.orig/drivers/atmodem/sms.c 2012-04-20 21:06:29.000000000 +0200
+++ ofono-1.6/drivers/atmodem/sms.c 2013-01-21 16:48:44.460627485 +0100
@@ -805,6 +807,7 @@ static gboolean build_cnmi_string(char *
case OFONO_VENDOR_NOVATEL:
case OFONO_VENDOR_HUAWEI:
case OFONO_VENDOR_ZTE:
+ case OFONO_VENDOR_SIMCOM:
/* MSM devices advertise support for mode 2, but return an
* error if we attempt to actually use it. */
mode = "1";
diff -pruN ofono-1.6.orig/drivers/atmodem/sim.c ofono-1.6/drivers/atmodem/sim.c
--- ofono-1.6.orig/drivers/atmodem/sim.c 2013-01-23 11:38:22.959609087 +0100
+++ ofono-1.6/drivers/atmodem/sim.c 2013-01-23 11:57:52.602608948 +0100
@@ -1023,10 +1023,16 @@ static void at_pin_send_cb(gboolean ok,
FALSE, cbd, g_free);
return;
case OFONO_VENDOR_ZTE:
+ case OFONO_VENDOR_SIMCOM:
/*
* On ZTE modems, after pin is entered, SIM state is checked
* by polling CPIN as their modem doesn't provide unsolicited
* notification of SIM readiness.
+ *
+ * On SIMCOM modems, SIM is busy after pin is entered (we've
+ * got an "+CME ERROR: 14" at "AT+CPIN?" request) and ofono
+ * don't catch the "+CPIN: READY" message sent by the modem
+ * when SIM is ready. So, use extra CPIN to check the state.
*/
sd->sim_state_query = at_util_sim_state_query_new(sd->chat,
2, 20, sim_state_cb, cbd,
diff -purN ofono-1.6/drivers/atmodem/network-registration.c ofono-patched/drivers/atmodem/network-registration.c
--- ofono-1.6/drivers/atmodem/network-registration.c 2013-01-18 15:04:03.598659165 +0100
+++ ofono-patched/drivers/atmodem/network-registration.c 2013-01-18 14:54:03.256659236 +0100
@@ -1411,6 +1411,14 @@ static void at_creg_set_cb(gboolean ok,
}
switch (nd->vendor) {
+ case OFONO_VENDOR_SIMCOM:
+ /* Register for CSQ changes */
+ g_at_chat_send(nd->chat, "AT+AUTOCSQ=1,1", none_prefix,
+ NULL, NULL, NULL);
+
+ g_at_chat_register(nd->chat, "+CSQ:",
+ csq_notify, FALSE, netreg, NULL);
+ break;
case OFONO_VENDOR_PHONESIM:
g_at_chat_register(nd->chat, "+CSQ:",
csq_notify, FALSE, netreg, NULL);
@@ -1534,7 +1537,6 @@ static void at_creg_set_cb(gboolean ok,
break;
case OFONO_VENDOR_NOKIA:
case OFONO_VENDOR_SAMSUNG:
- case OFONO_VENDOR_SIMCOM:
/* Signal strength reporting via CIND is not supported */
break;
default:
--- /dev/null 2013-01-16 10:54:41.551089567 +0100
+++ ofono-1.6/plugins/simcom.c 2013-01-23 10:43:05.631609483 +0100
@@ -0,0 +1,308 @@
+/*
+ *
+ * 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
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <errno.h>
+#include <stdlib.h>
+
+#include <glib.h>
+#include <gatchat.h>
+#include <gattty.h>
+
+#define OFONO_API_SUBJECT_TO_CHANGE
+#include <ofono/plugin.h>
+#include <ofono/modem.h>
+#include <ofono/devinfo.h>
+#include <ofono/netreg.h>
+#include <ofono/sim.h>
+#include <ofono/cbs.h>
+#include <ofono/sms.h>
+#include <ofono/ussd.h>
+#include <ofono/gprs.h>
+#include <ofono/gprs-context.h>
+#include <ofono/radio-settings.h>
+#include <ofono/phonebook.h>
+#include <ofono/log.h>
+
+#include <drivers/atmodem/atutil.h>
+#include <drivers/atmodem/vendor.h>
+
+static const char *none_prefix[] = { NULL };
+
+struct simcom_data {
+ GAtChat *modem;
+ GAtChat *data;
+};
+
+/* Callback and helpers functions */
+static void simcom_debug(const char *str, void *user_data)
+{
+ const char *prefix = user_data;
+
+ ofono_info("%s%s", prefix, str);
+}
+
+static void cfun_enable(gboolean ok, GAtResult *result, gpointer user_data)
+{
+ struct ofono_modem *modem = user_data;
+ struct simcom_data *data = ofono_modem_get_data(modem);
+
+ DBG("");
+
+ if (!ok) {
+ g_at_chat_unref(data->modem);
+ data->modem = NULL;
+
+ g_at_chat_unref(data->data);
+ data->data = NULL;
+
+ ofono_modem_set_powered(modem, FALSE);
+ return;
+ }
+
+ ofono_modem_set_powered(modem, TRUE);
+}
+
+static void cfun_disable(gboolean ok, GAtResult *result, gpointer user_data)
+{
+ struct ofono_modem *modem = user_data;
+ struct simcom_data *data = ofono_modem_get_data(modem);
+
+ DBG("");
+
+ g_at_chat_unref(data->data);
+ data->data = NULL;
+
+ if (ok)
+ ofono_modem_set_powered(modem, FALSE);
+}
+
+static GAtChat *open_device(struct ofono_modem *modem,
+ const char *key,
+ char *debug)
+{
+ const char *device;
+ GIOChannel *channel;
+ GAtSyntax *syntax;
+ GAtChat *chat;
+ /* GHashTable *options; */
+
+ device = ofono_modem_get_string(modem, key);
+ if (device == NULL)
+ return NULL;
+
+ DBG("%s %s", key, device);
+
+ /* options = g_hash_table_new(g_str_hash, g_str_equal); */
+ /* if (options == NULL) */
+ /* return NULL; */
+
+ /* g_hash_table_insert(options, "Baud", "115200"); */
+ /* g_hash_table_insert(options, "Parity", "none"); */
+ /* g_hash_table_insert(options, "StopBits", "1"); */
+ /* g_hash_table_insert(options, "DataBits", "8"); */
+ /* g_hash_table_insert(options, "XonXoff", "off"); */
+ /* g_hash_table_insert(options, "RtsCts", "on"); */
+ /* g_hash_table_insert(options, "Local", "on"); */
+ /* g_hash_table_insert(options, "Read", "on"); */
+
+ channel = g_at_tty_open(device, NULL);
+
+ /* g_hash_table_destroy(options); */
+
+ if (channel == NULL)
+ return NULL;
+
+ syntax = g_at_syntax_new_gsm_permissive();
+ chat = g_at_chat_new(channel, syntax);
+ g_at_syntax_unref(syntax);
+
+ g_io_channel_unref(channel);
+
+ if (chat == NULL)
+ return NULL;
+
+ if (getenv("OFONO_AT_DEBUG"))
+ g_at_chat_set_debug(chat, simcom_debug, debug);
+
+ return chat;
+}
+
+/* Modem interface function */
+static int simcom_probe(struct ofono_modem *modem)
+{
+ struct simcom_data *data;
+
+ DBG("%p", modem);
+
+ data = g_try_new0(struct simcom_data, 1);
+ if (data == NULL)
+ return -ENOMEM;
+
+ ofono_modem_set_data(modem, data);
+
+ return 0;
+}
+
+static void simcom_remove(struct ofono_modem *modem)
+{
+ struct simcom_data *data = ofono_modem_get_data(modem);
+
+ DBG("%p", modem);
+
+ ofono_modem_set_data(modem, NULL);
+
+ /* Cleanup after hot-unplug */
+ g_at_chat_unref(data->data);
+
+ g_free(data);
+}
+
+static int simcom_enable(struct ofono_modem *modem)
+{
+ struct simcom_data *data = ofono_modem_get_data(modem);
+
+ DBG("%p", modem);
+
+ data->modem = open_device(modem, "Modem", "Modem: ");
+ if (data->modem == NULL)
+ return -EINVAL;
+
+ data->data = open_device(modem, "Data", "Data: ");
+ if (data->data == NULL) {
+ g_at_chat_unref(data->modem);
+ data->modem = NULL;
+ return -EIO;
+ }
+
+ g_at_chat_set_slave(data->modem, data->data);
+
+ g_at_chat_blacklist_terminator(data->data,
+ G_AT_CHAT_TERMINATOR_NO_CARRIER);
+
+ /* init modem */
+ g_at_chat_send(data->modem, "ATE0 +CMEE=1", NULL, NULL, NULL, NULL);
+ g_at_chat_send(data->data, "ATE0 +CMEE=1", NULL, NULL, NULL, NULL);
+
+ g_at_chat_send(data->data, "AT+CFUN=1", none_prefix,
+ cfun_enable, modem, NULL);
+
+ return -EINPROGRESS;
+}
+
+static int simcom_disable(struct ofono_modem *modem)
+{
+ struct simcom_data *data = ofono_modem_get_data(modem);
+
+ DBG("%p", modem);
+
+ g_at_chat_cancel_all(data->modem);
+ g_at_chat_unregister_all(data->modem);
+
+ g_at_chat_unref(data->modem);
+ data->modem = NULL;
+
+ g_at_chat_cancel_all(data->data);
+ g_at_chat_unregister_all(data->data);
+
+ g_at_chat_send(data->data, "AT+CFUN=4", none_prefix,
+ cfun_disable, modem, NULL);
+
+ return -EINPROGRESS;
+}
+
+static void simcom_pre_sim(struct ofono_modem *modem)
+{
+ struct simcom_data *data = ofono_modem_get_data(modem);
+ struct ofono_sim *sim;
+
+ DBG("%p", modem);
+
+ ofono_devinfo_create(modem, 0, "atmodem", data->data);
+ sim = ofono_sim_create(modem, OFONO_VENDOR_SIMCOM, "atmodem",
+ data->data);
+
+ if (sim)
+ ofono_sim_inserted_notify(sim, TRUE);
+}
+
+static void simcom_post_sim(struct ofono_modem *modem)
+{
+ struct simcom_data *data = ofono_modem_get_data(modem);
+ struct ofono_message_waiting *mw;
+ struct ofono_gprs *gprs;
+ struct ofono_gprs_context *gc;
+
+ DBG("%p", modem);
+
+ ofono_phonebook_create(modem, 0, "atmodem", data->data);
+
+ ofono_sms_create(modem, OFONO_VENDOR_SIMCOM, "atmodem",
+ data->data);
+
+ /* gprs things */
+ gprs = ofono_gprs_create(modem, 0, "atmodem", data->data);
+ gc = ofono_gprs_context_create(modem, 0, "atmodem", data->modem);
+
+ if(gprs && gc)
+ {
+ ofono_gprs_add_context(gprs, gc);
+ }
+}
+
+static void simcom_post_online(struct ofono_modem *modem)
+{
+ struct simcom_data *data = ofono_modem_get_data(modem);
+
+ DBG("%p", modem);
+
+ ofono_netreg_create(modem, OFONO_VENDOR_SIMCOM, "atmodem", data->data);
+ ofono_cbs_create(modem, 0, "atmodem", data->data);
+ ofono_ussd_create(modem, 0, "atmodem", data->data);
+}
+
+static struct ofono_modem_driver simcom_driver = {
+ .name = "simcom",
+ .probe = simcom_probe,
+ .remove = simcom_remove,
+ .enable = simcom_enable,
+ .disable = simcom_disable,
+ .pre_sim = simcom_pre_sim,
+ .post_sim = simcom_post_sim,
+ .post_online = simcom_post_online,
+};
+
+static int simcom_init(void)
+{
+ return ofono_modem_driver_register(&simcom_driver);
+}
+
+static void simcom_exit(void)
+{
+ ofono_modem_driver_unregister(&simcom_driver);
+}
+
+OFONO_PLUGIN_DEFINE(simcom, "SIMCOM modem driver", VERSION,
+ OFONO_PLUGIN_PRIORITY_DEFAULT,
+ simcom_init, simcom_exit)
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