[PATCH 1/3] sim800: adding support for SimCom SIM800 modem

[PATCH 1/3] sim800: adding support for SimCom SIM800 modem

[Clement Viel]

[-- Attachment #1: Type: text/plain, Size: 12560 bytes --]

From: clem <vielclement@gmail.com>

---
 Makefile.am      |   4 +
 plugins/sim800.c | 463 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 467 insertions(+)
 create mode 100644 plugins/sim800.c

diff --git a/Makefile.am b/Makefile.am
index 6dee4ce..f4d03b6 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -496,6 +496,10 @@ builtin_sources += plugins/speedupcdma.c
 builtin_modules += samsung
 builtin_sources += plugins/samsung.c
 
+builtin_modules += sim800
+builtin_sources += plugins/sim800.c
+
+
 builtin_modules += sim900
 builtin_sources += plugins/sim900.c
 
diff --git a/plugins/sim800.c b/plugins/sim800.c
new file mode 100644
index 0000000..c9285c1
--- /dev/null
+++ b/plugins/sim800.c
@@ -0,0 +1,463 @@
+/*
+ *
+ *  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 <unistd.h>
+#include <glib.h>
+#include <gatchat.h>
+#include <gattty.h>
+#include <gatmux.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/sms.h>
+#include <ofono/ussd.h>
+#include <ofono/gprs.h>
+#include <ofono/gprs-context.h>
+#include <ofono/phonebook.h>
+#include <ofono/history.h>
+#include <ofono/log.h>
+#include <ofono/voicecall.h>
+#include <ofono/call-volume.h>
+#include <drivers/atmodem/vendor.h>
+
+#define NUM_DLC 5
+
+#define VOICE_DLC   0
+#define NETREG_DLC  1
+#define SMS_DLC     2
+#define GPRS_DLC    3
+#define SETUP_DLC   4
+
+static char *dlc_prefixes[NUM_DLC] = { "Voice: ", "Net: ", "SMS: ",
+					"GPRS: " , "Setup: "};
+
+static const char *none_prefix[] = { NULL };
+
+struct sim800_data {
+	GIOChannel *device;
+	GAtMux *mux;
+	GAtChat * dlcs[NUM_DLC];
+	guint frame_size;
+	int mux_not_supported;
+};
+
+
+static void mux_ready_notify(GAtResult *result, gpointer user_data)
+{
+	struct ofono_modem *modem = user_data;
+	struct sim800_data *data = ofono_modem_get_data(modem);
+	struct ofono_gprs *gprs = NULL;
+	struct ofono_gprs_context *gc;
+	static int notified = 0;
+
+	if (!notified) {
+	ofono_sms_create(modem, OFONO_VENDOR_SIMCOM, "atmodem",
+						data->dlcs[SMS_DLC]);
+
+
+	gprs = ofono_gprs_create(modem, 0, "atmodem", data->dlcs[GPRS_DLC]);
+	if (gprs == NULL)
+		return;
+
+	gc = ofono_gprs_context_create(modem, OFONO_VENDOR_SIMCOM,
+					"atmodem", data->dlcs[GPRS_DLC]);
+	if (gc)
+		ofono_gprs_add_context(gprs, gc);
+	}
+	notified = 1;
+
+}
+
+
+static int sim800_probe(struct ofono_modem *modem)
+{
+	struct sim800_data *data;
+
+	DBG("%p", modem);
+
+	data = g_try_new0(struct sim800_data, 1);
+	if (data == NULL)
+		return -ENOMEM;
+
+	ofono_modem_set_data(modem, data);
+
+	return 0;
+}
+
+static void sim800_remove(struct ofono_modem *modem)
+{
+	struct sim800_data *data = ofono_modem_get_data(modem);
+
+	DBG("%p", modem);
+
+	ofono_modem_set_data(modem, NULL);
+
+	g_free(data);
+}
+
+static void sim800_debug(const char *str, void *user_data)
+{
+	const char *prefix = user_data;
+
+	ofono_info("%s%s", prefix, str);
+}
+
+static GAtChat *open_device(struct ofono_modem *modem,
+			const char *key, char *debug)
+{
+	struct sim800_data *data = ofono_modem_get_data(modem);
+	const char *device;
+	GAtSyntax *syntax;
+	GIOChannel *channel;
+	GAtChat *chat;
+	GHashTable *options;
+
+	device = ofono_modem_get_string(modem, key);
+	if (device == NULL) {
+		DBG("couldn't get string %s",key);
+		return NULL;
+	}
+
+	DBG("%s %s", key, device);
+
+	options = g_hash_table_new(g_str_hash, g_str_equal);
+	if (options == NULL) {
+		DBG("options is 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, "Local", "off");
+	g_hash_table_insert(options, "RtsCts", "off");
+	g_hash_table_insert(options, "Read", "on");
+
+	channel = g_at_tty_open(device, options);
+	g_hash_table_destroy(options);
+
+	if (channel == NULL){
+		DBG("serial channel couldn't be opened");
+		return NULL;
+	}
+
+	data->device = channel;
+	syntax = g_at_syntax_new_gsm_permissive();
+	chat = g_at_chat_new(channel, syntax);
+	g_at_syntax_unref(syntax);
+
+	if (chat == NULL) {
+		g_io_channel_unref(data->device);
+		data->device = NULL;
+		DBG("at channel couldn't be opened");
+
+		return NULL;
+	}
+
+	if (getenv("OFONO_AT_DEBUG"))
+		g_at_chat_set_debug(chat, sim800_debug, debug);
+
+	return chat;
+}
+
+static GAtChat *create_chat(GIOChannel *channel, struct ofono_modem *modem,
+				char *debug)
+{
+	GAtSyntax *syntax;
+	GAtChat *chat;
+
+	if (channel == NULL)
+		return NULL;
+
+	syntax = g_at_syntax_new_gsmv1();
+	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")) {
+		DBG("AT DEBUG enabled");
+		g_at_chat_set_debug(chat, sim800_debug, debug);
+	}
+
+	return chat;
+}
+
+static void shutdown_device(struct sim800_data *data)
+{
+	int i;
+
+	DBG("");
+
+	for (i = 0; i < NUM_DLC; i++) {
+		if (data->dlcs[i] == NULL)
+			continue;
+
+		g_at_chat_unref(data->dlcs[i]);
+		data->dlcs[i] = NULL;
+	}
+
+	if (data->mux) {
+		g_at_mux_shutdown(data->mux);
+		g_at_mux_unref(data->mux);
+		data->mux = NULL;
+	}
+
+	g_io_channel_unref(data->device);
+	data->device = NULL;
+}
+
+static void setup_internal_mux(struct ofono_modem *modem)
+{
+	struct sim800_data *data = ofono_modem_get_data(modem);
+	int i;
+
+	DBG("");
+
+	data->frame_size = 128;
+
+	data->mux = g_at_mux_new_gsm0710_basic(data->device,
+						data->frame_size);
+	if (data->mux == NULL)
+		goto error;
+
+	if (getenv("OFONO_MUX_DEBUG"))
+		g_at_mux_set_debug(data->mux, sim800_debug, "MUX: ");
+
+	if (!g_at_mux_start(data->mux)) {
+		g_at_mux_shutdown(data->mux);
+		g_at_mux_unref(data->mux);
+		goto error;
+	}
+
+	for (i = 0; i < NUM_DLC; i++) {
+		GIOChannel *channel = g_at_mux_create_channel(data->mux);
+
+		data->dlcs[i] = create_chat(channel, modem, dlc_prefixes[i]);
+		if (data->dlcs[i] == NULL) {
+			ofono_error("Failed to create channel");
+			goto error;
+		}
+	}
+	for (i = 0; i<NUM_DLC; i++) {
+		g_at_chat_register(data->dlcs[i], "SMS Ready", mux_ready_notify, FALSE, modem, NULL);
+	}
+
+	ofono_modem_set_powered(modem, TRUE);
+	return;
+
+error:
+	shutdown_device(data);
+	ofono_modem_set_powered(modem, FALSE);
+}
+
+static void mux_setup_cb(gboolean ok, GAtResult *result, gpointer user_data)
+{
+	struct ofono_modem *modem = user_data;
+	struct sim800_data *data = ofono_modem_get_data(modem);
+
+	DBG("");
+
+	g_at_chat_unref(data->dlcs[SETUP_DLC]);
+	data->dlcs[SETUP_DLC] = NULL;
+
+	if (!ok)
+		goto error;
+
+	data->mux_not_supported = 0;
+	setup_internal_mux(modem);
+	return;
+
+error:
+	DBG("If you are on a SIM800H modem with firmware version is \
+		1308B02SIM800H32_BT or lower, CMUX command is not supported thus \
+		preventing GPRS, Voice and SMS managers \
+		to be executed simultaneously.");
+	/*
+	 * If your use of SIM800 does not need simultaneous use of Voice, SMS 
+	 * and GPRS, you can ignore the error, set mux_not_supported=1 and comment
+	 * setup_internal_mux function, refactor this code to use only one DLC.
+	 * Else, you must contact SIMCOM to get a firmware update.
+	 */
+	shutdown_device(data);
+	ofono_modem_set_powered(modem, FALSE);
+}
+
+static void cfun_enable(gboolean ok, GAtResult *result, gpointer user_data)
+{
+	struct ofono_modem *modem = user_data;
+	struct sim800_data *data = ofono_modem_get_data(modem);
+
+	DBG("");
+
+	if (!ok) {
+		g_at_chat_unref(data->dlcs[SETUP_DLC]);
+		data->dlcs[SETUP_DLC] = NULL;
+		ofono_modem_set_powered(modem, FALSE);
+		return;
+	}
+
+	g_at_chat_send(data->dlcs[SETUP_DLC],"AT+CMUX=0,0,5,128,10,3,30,10,2", NULL,mux_setup_cb, modem, NULL);
+
+}
+
+static int sim800_enable(struct ofono_modem *modem)
+{
+	struct sim800_data *data = ofono_modem_get_data(modem);
+
+	DBG("%p", modem);
+
+	data->dlcs[SETUP_DLC] = open_device(modem, "Device", "Setup: ");
+	if (data->dlcs[SETUP_DLC] == NULL){
+		DBG("couldn't open device");
+		return -EINVAL;
+	}
+
+	g_at_chat_send(data->dlcs[SETUP_DLC], "ATE0", NULL, NULL, NULL, NULL);
+	g_at_chat_send(data->dlcs[SETUP_DLC], "AT+CFUN=1", none_prefix,
+					cfun_enable, modem, NULL);
+
+	return -EINPROGRESS;
+}
+
+static void cfun_disable(gboolean ok, GAtResult *result, gpointer user_data)
+{
+	struct ofono_modem *modem = user_data;
+	struct sim800_data *data = ofono_modem_get_data(modem);
+
+	DBG("");
+
+	shutdown_device(data);
+
+	if (ok)
+		ofono_modem_set_powered(modem, FALSE);
+}
+
+static int sim800_disable(struct ofono_modem *modem)
+{
+	struct sim800_data *data = ofono_modem_get_data(modem);
+
+	DBG("%p", modem);
+
+	g_at_chat_send(data->dlcs[SETUP_DLC], "AT+CFUN=4", none_prefix,
+					cfun_disable, modem, NULL);
+
+	return -EINPROGRESS;
+}
+
+static void sim800_pre_sim(struct ofono_modem *modem)
+{
+	struct sim800_data *data = ofono_modem_get_data(modem);
+	struct ofono_sim *sim;
+
+	DBG("%p %x", modem, data);
+
+	ofono_devinfo_create(modem, 0, "atmodem", data->dlcs[VOICE_DLC]);
+	DBG("devinfo created");
+	sim = ofono_sim_create(modem, OFONO_VENDOR_SIMCOM, "atmodem",
+						data->dlcs[VOICE_DLC]);
+	DBG("sim created created");
+
+	if (sim)
+		ofono_sim_inserted_notify(sim, TRUE);
+
+	DBG("pre sim finished");
+}
+
+static void sim800_post_sim(struct ofono_modem *modem)
+{
+	struct sim800_data *data = ofono_modem_get_data(modem);
+	struct ofono_gprs *gprs = NULL;
+	struct ofono_gprs_context *gc;
+
+	DBG("%p", modem);
+
+	/* If CMUX command is not supported, we can go through
+	 * the normal way but with only one DLC.*/
+
+	if (data->mux_not_supported){
+
+		ofono_sms_create(modem, OFONO_VENDOR_SIMCOM, "atmodem",
+							data->dlcs[SMS_DLC]);
+
+
+	gprs = ofono_gprs_create(modem, 0, "atmodem", data->dlcs[GPRS_DLC]);
+	if (gprs == NULL)
+		return;
+
+	gc = ofono_gprs_context_create(modem, OFONO_VENDOR_SIMCOM,
+					"atmodem", data->dlcs[GPRS_DLC]);
+	if (gc)
+		ofono_gprs_add_context(gprs, gc);
+	}
+}
+
+static void sim800_post_online(struct ofono_modem *modem)
+{
+	struct sim800_data *data = ofono_modem_get_data(modem);
+
+	DBG("%p", modem);
+
+	ofono_phonebook_create(modem, 0, "atmodem", data->dlcs[VOICE_DLC]);
+	ofono_netreg_create(modem, OFONO_VENDOR_SIMCOM,
+			"atmodem", data->dlcs[NETREG_DLC]);
+	ofono_ussd_create(modem, 0, "atmodem", data->dlcs[VOICE_DLC]);
+	ofono_voicecall_create(modem, 0, "atmodem", data->dlcs[VOICE_DLC]);
+	ofono_call_volume_create(modem, 0, "atmodem", data->dlcs[VOICE_DLC]);
+}
+
+static struct ofono_modem_driver sim800_driver = {
+	.name		= "sim800",
+	.probe		= sim800_probe,
+	.remove		= sim800_remove,
+	.enable		= sim800_enable,
+	.disable	= sim800_disable,
+	.pre_sim	= sim800_pre_sim,
+	.post_sim	= sim800_post_sim,
+	.post_online	= sim800_post_online,
+};
+
+static int sim800_init(void)
+{
+	return ofono_modem_driver_register(&sim800_driver);
+}
+
+static void sim800_exit(void)
+{
+	ofono_modem_driver_unregister(&sim800_driver);
+}
+
+OFONO_PLUGIN_DEFINE(sim800, "SIM800 modem driver", VERSION,
+		OFONO_PLUGIN_PRIORITY_DEFAULT, sim800_init, sim800_exit)
-- 
2.7.4

[PATCH 2/3] sim800: adding udev detection

[Clement Viel]

[-- Attachment #1: Type: text/plain, Size: 529 bytes --]

From: clem <vielclement@gmail.com>

---
 plugins/udevng.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/plugins/udevng.c b/plugins/udevng.c
index 02d049e..3f019b8 100644
--- a/plugins/udevng.c
+++ b/plugins/udevng.c
@@ -1300,6 +1300,7 @@ static struct {
 	{ "cinterion",	setup_serial_modem	},
 	{ "nokiacdma",	setup_serial_modem	},
 	{ "sim900",	setup_serial_modem	},
+	{ "sim800",	setup_serial_modem	},
 	{ "wavecom",	setup_wavecom		},
 	{ "tc65",	setup_tc65		},
 	{ "ehs6",	setup_ehs6		},
-- 
2.7.4

[PATCH 3/3] sim800: adding documentation and updating AUTHORS

[Clement Viel]

[-- Attachment #1: Type: text/plain, Size: 914 bytes --]

From: clem <vielclement@gmail.com>

---
 AUTHORS              | 1 +
 doc/sim800-modem.txt | 7 +++++++
 2 files changed, 8 insertions(+)
 create mode 100644 doc/sim800-modem.txt

diff --git a/AUTHORS b/AUTHORS
index 52f46e9..c5fa295 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -137,3 +137,4 @@ Varun Gargi <varun.gargi@intel.com>
 Florent Beillonnet <florent.beillonnet@gmail.com>
 Martin Hundebøll <martin@geanix.com>
 Julien Tournier <tournier.julien@gmail.com>
+Clement Viel <vielclement@gmail.com>
diff --git a/doc/sim800-modem.txt b/doc/sim800-modem.txt
new file mode 100644
index 0000000..94bf573
--- /dev/null
+++ b/doc/sim800-modem.txt
@@ -0,0 +1,7 @@
+SIM800 modem usage
+===================
+
+To enable SIM800 module support you need to put the following
+udev rule into appropriate file in /{etc,lib}/udev/rules.d:
+
+KERNEL=="gsmtty3", ENV{OFONO_DRIVER}="sim800"
-- 
2.7.4

Re: [PATCH 1/3] sim800: adding support for SimCom SIM800 modem

[Denis Kenzior]

[-- Attachment #1: Type: text/plain, Size: 5953 bytes --]

Hi Clement,

On 09/24/2018 05:43 PM, Clement Viel wrote:
> From: clem <vielclement@gmail.com>

Your author information is still broken for the actual commits.  Please 
fix that.

> 
> ---
>   Makefile.am      |   4 +
>   plugins/sim800.c | 463 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
>   2 files changed, 467 insertions(+)
>   create mode 100644 plugins/sim800.c
> 
> diff --git a/Makefile.am b/Makefile.am
> index 6dee4ce..f4d03b6 100644
> --- a/Makefile.am
> +++ b/Makefile.am
> @@ -496,6 +496,10 @@ builtin_sources += plugins/speedupcdma.c
>   builtin_modules += samsung
>   builtin_sources += plugins/samsung.c
>   
> +builtin_modules += sim800
> +builtin_sources += plugins/sim800.c
> +
> +

One empty line please

>   builtin_modules += sim900
>   builtin_sources += plugins/sim900.c
>   
> diff --git a/plugins/sim800.c b/plugins/sim800.c
> new file mode 100644
> index 0000000..c9285c1
> --- /dev/null
> +++ b/plugins/sim800.c
> @@ -0,0 +1,463 @@
> +/*
> + *
> + *  oFono - Open Source Telephony
> + *
> + *  Copyright (C) 2008-2011  Intel Corporation. All rights reserved.

Not updating the copyright?

> + *
> + *  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 <unistd.h>
> +#include <glib.h>
> +#include <gatchat.h>
> +#include <gattty.h>
> +#include <gatmux.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/sms.h>
> +#include <ofono/ussd.h>
> +#include <ofono/gprs.h>
> +#include <ofono/gprs-context.h>
> +#include <ofono/phonebook.h>
> +#include <ofono/history.h>
> +#include <ofono/log.h>
> +#include <ofono/voicecall.h>
> +#include <ofono/call-volume.h>
> +#include <drivers/atmodem/vendor.h>
> +
> +#define NUM_DLC 5
> +
> +#define VOICE_DLC   0
> +#define NETREG_DLC  1
> +#define SMS_DLC     2
> +#define GPRS_DLC    3
> +#define SETUP_DLC   4
> +
> +static char *dlc_prefixes[NUM_DLC] = { "Voice: ", "Net: ", "SMS: ",
> +					"GPRS: " , "Setup: "};
> +
> +static const char *none_prefix[] = { NULL };
> +
> +struct sim800_data {
> +	GIOChannel *device;
> +	GAtMux *mux;
> +	GAtChat * dlcs[NUM_DLC];
> +	guint frame_size;
> +	int mux_not_supported;

bool ?

> +};
> +
> +

No double empty lines please

> +static void mux_ready_notify(GAtResult *result, gpointer user_data)
> +{
> +	struct ofono_modem *modem = user_data;
> +	struct sim800_data *data = ofono_modem_get_data(modem);
> +	struct ofono_gprs *gprs = NULL;
> +	struct ofono_gprs_context *gc;
> +	static int notified = 0;
> +
> +	if (!notified) {
> +	ofono_sms_create(modem, OFONO_VENDOR_SIMCOM, "atmodem",
> +						data->dlcs[SMS_DLC]);
> +
> +

Wrong indentation & coding style...

> +	gprs = ofono_gprs_create(modem, 0, "atmodem", data->dlcs[GPRS_DLC]);
> +	if (gprs == NULL)
> +		return;
> +
> +	gc = ofono_gprs_context_create(modem, OFONO_VENDOR_SIMCOM,
> +					"atmodem", data->dlcs[GPRS_DLC]);
> +	if (gc)
> +		ofono_gprs_add_context(gprs, gc);
> +	}
> +	notified = 1;
> +
> +}
> +
> +

<snip>

> +static void mux_setup_cb(gboolean ok, GAtResult *result, gpointer user_data)
> +{
> +	struct ofono_modem *modem = user_data;
> +	struct sim800_data *data = ofono_modem_get_data(modem);
> +
> +	DBG("");
> +
> +	g_at_chat_unref(data->dlcs[SETUP_DLC]);
> +	data->dlcs[SETUP_DLC] = NULL;
> +
> +	if (!ok)
> +		goto error;
> +
> +	data->mux_not_supported = 0;

What does this variable do?

> +	setup_internal_mux(modem);
> +	return;
> +
> +error:
> +	DBG("If you are on a SIM800H modem with firmware version is \
> +		1308B02SIM800H32_BT or lower, CMUX command is not supported thus \
> +		preventing GPRS, Voice and SMS managers \
> +		to be executed simultaneously.");
> +	/*
> +	 * If your use of SIM800 does not need simultaneous use of Voice, SMS
> +	 * and GPRS, you can ignore the error, set mux_not_supported=1 and comment
> +	 * setup_internal_mux function, refactor this code to use only one DLC.
> +	 * Else, you must contact SIMCOM to get a firmware update.

I would drop all these hacks and document the required firmware version 
in doc/sim800-modem.txt.

> +	 */
> +	shutdown_device(data);
> +	ofono_modem_set_powered(modem, FALSE);
> +}
> +
> +static void cfun_enable(gboolean ok, GAtResult *result, gpointer user_data)
> +{
> +	struct ofono_modem *modem = user_data;
> +	struct sim800_data *data = ofono_modem_get_data(modem);
> +
> +	DBG("");
> +
> +	if (!ok) {
> +		g_at_chat_unref(data->dlcs[SETUP_DLC]);
> +		data->dlcs[SETUP_DLC] = NULL;
> +		ofono_modem_set_powered(modem, FALSE);
> +		return;
> +	}
> +
> +	g_at_chat_send(data->dlcs[SETUP_DLC],"AT+CMUX=0,0,5,128,10,3,30,10,2", NULL,mux_setup_cb, modem, NULL);

Not our coding style.

> +
> +}
> +


<snip>

I ran a quick diff between this and sim900 driver and there's really not 
enough differences to warrant a completely separate plugin.  Can't we 
just simply query the model version and act accordingly?

Regards,
-Denis

Re: [PATCH 1/3] sim800: adding support for SimCom SIM800 modem

[Clement Viel]

[-- Attachment #1: Type: text/plain, Size: 6849 bytes --]

Hi Denis,

On Tue, Sep 25, 2018 at 11:48:39AM -0500, Denis Kenzior wrote:
> Hi Clement,
> 
> On 09/24/2018 05:43 PM, Clement Viel wrote:
> >From: clem <vielclement@gmail.com>
> 
> Your author information is still broken for the actual commits.  Please fix
> that.
> 
> >
> >---
> >  Makefile.am      |   4 +
> >  plugins/sim800.c | 463 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
> >  2 files changed, 467 insertions(+)
> >  create mode 100644 plugins/sim800.c
> >
> >diff --git a/Makefile.am b/Makefile.am
> >index 6dee4ce..f4d03b6 100644
> >--- a/Makefile.am
> >+++ b/Makefile.am
> >@@ -496,6 +496,10 @@ builtin_sources += plugins/speedupcdma.c
> >  builtin_modules += samsung
> >  builtin_sources += plugins/samsung.c
> >+builtin_modules += sim800
> >+builtin_sources += plugins/sim800.c
> >+
> >+
> 
> One empty line please
> 
> >  builtin_modules += sim900
> >  builtin_sources += plugins/sim900.c
> >diff --git a/plugins/sim800.c b/plugins/sim800.c
> >new file mode 100644
> >index 0000000..c9285c1
> >--- /dev/null
> >+++ b/plugins/sim800.c
> >@@ -0,0 +1,463 @@
> >+/*
> >+ *
> >+ *  oFono - Open Source Telephony
> >+ *
> >+ *  Copyright (C) 2008-2011  Intel Corporation. All rights reserved.
> 
> Not updating the copyright?
> 
> >+ *
> >+ *  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 <unistd.h>
> >+#include <glib.h>
> >+#include <gatchat.h>
> >+#include <gattty.h>
> >+#include <gatmux.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/sms.h>
> >+#include <ofono/ussd.h>
> >+#include <ofono/gprs.h>
> >+#include <ofono/gprs-context.h>
> >+#include <ofono/phonebook.h>
> >+#include <ofono/history.h>
> >+#include <ofono/log.h>
> >+#include <ofono/voicecall.h>
> >+#include <ofono/call-volume.h>
> >+#include <drivers/atmodem/vendor.h>
> >+
> >+#define NUM_DLC 5
> >+
> >+#define VOICE_DLC   0
> >+#define NETREG_DLC  1
> >+#define SMS_DLC     2
> >+#define GPRS_DLC    3
> >+#define SETUP_DLC   4
> >+
> >+static char *dlc_prefixes[NUM_DLC] = { "Voice: ", "Net: ", "SMS: ",
> >+					"GPRS: " , "Setup: "};
> >+
> >+static const char *none_prefix[] = { NULL };
> >+
> >+struct sim800_data {
> >+	GIOChannel *device;
> >+	GAtMux *mux;
> >+	GAtChat * dlcs[NUM_DLC];
> >+	guint frame_size;
> >+	int mux_not_supported;
> 
> bool ?
> 
> >+};
> >+
> >+
> 
> No double empty lines please
> 
> >+static void mux_ready_notify(GAtResult *result, gpointer user_data)
> >+{
> >+	struct ofono_modem *modem = user_data;
> >+	struct sim800_data *data = ofono_modem_get_data(modem);
> >+	struct ofono_gprs *gprs = NULL;
> >+	struct ofono_gprs_context *gc;
> >+	static int notified = 0;
> >+
> >+	if (!notified) {
> >+	ofono_sms_create(modem, OFONO_VENDOR_SIMCOM, "atmodem",
> >+						data->dlcs[SMS_DLC]);
> >+
> >+
> 
> Wrong indentation & coding style...
> 
> >+	gprs = ofono_gprs_create(modem, 0, "atmodem", data->dlcs[GPRS_DLC]);
> >+	if (gprs == NULL)
> >+		return;
> >+
> >+	gc = ofono_gprs_context_create(modem, OFONO_VENDOR_SIMCOM,
> >+					"atmodem", data->dlcs[GPRS_DLC]);
> >+	if (gc)
> >+		ofono_gprs_add_context(gprs, gc);
> >+	}
> >+	notified = 1;
> >+
> >+}
> >+
> >+
> 
> <snip>
> 
> >+static void mux_setup_cb(gboolean ok, GAtResult *result, gpointer user_data)
> >+{
> >+	struct ofono_modem *modem = user_data;
> >+	struct sim800_data *data = ofono_modem_get_data(modem);
> >+
> >+	DBG("");
> >+
> >+	g_at_chat_unref(data->dlcs[SETUP_DLC]);
> >+	data->dlcs[SETUP_DLC] = NULL;
> >+
> >+	if (!ok)
> >+		goto error;
> >+
> >+	data->mux_not_supported = 0;
> 
> What does this variable do?
> 
> >+	setup_internal_mux(modem);
> >+	return;
> >+
> >+error:
> >+	DBG("If you are on a SIM800H modem with firmware version is \
> >+		1308B02SIM800H32_BT or lower, CMUX command is not supported thus \
> >+		preventing GPRS, Voice and SMS managers \
> >+		to be executed simultaneously.");
> >+	/*
> >+	 * If your use of SIM800 does not need simultaneous use of Voice, SMS
> >+	 * and GPRS, you can ignore the error, set mux_not_supported=1 and comment
> >+	 * setup_internal_mux function, refactor this code to use only one DLC.
> >+	 * Else, you must contact SIMCOM to get a firmware update.
> 
> I would drop all these hacks and document the required firmware version in
> doc/sim800-modem.txt.
> 
> >+	 */
> >+	shutdown_device(data);
> >+	ofono_modem_set_powered(modem, FALSE);
> >+}
> >+
> >+static void cfun_enable(gboolean ok, GAtResult *result, gpointer user_data)
> >+{
> >+	struct ofono_modem *modem = user_data;
> >+	struct sim800_data *data = ofono_modem_get_data(modem);
> >+
> >+	DBG("");
> >+
> >+	if (!ok) {
> >+		g_at_chat_unref(data->dlcs[SETUP_DLC]);
> >+		data->dlcs[SETUP_DLC] = NULL;
> >+		ofono_modem_set_powered(modem, FALSE);
> >+		return;
> >+	}
> >+
> >+	g_at_chat_send(data->dlcs[SETUP_DLC],"AT+CMUX=0,0,5,128,10,3,30,10,2", NULL,mux_setup_cb, modem, NULL);
> 
> Not our coding style.
> 
> >+
> >+}
> >+
> 
> 
> <snip>
> 
> I ran a quick diff between this and sim900 driver and there's really not
> enough differences to warrant a completely separate plugin.  Can't we just
> simply query the model version and act accordingly?

My opinion is that the sim800 driver is much to be needed as Simcom considers the sim800 as the new sim900.
I "fear" that merging the two drivers will end up in a big file having a lot of "if...else" for every different feature
between those two drivers. Whereas having the two separate for some time will allow to address the use of sim800's new features
and support legacy sim900.

But as you are the maintainer, I think the decision is yours. Tell me and i'll modify my patches accordingly then preventing too much noisy commits :)



> 
> Regards,
> -Denis

Regards
Clement

Re: [PATCH 1/3] sim800: adding support for SimCom SIM800 modem

[Denis Kenzior]

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Hi Clement,

>>
>> I ran a quick diff between this and sim900 driver and there's really not
>> enough differences to warrant a completely separate plugin.  Can't we just
>> simply query the model version and act accordingly?
> 
> My opinion is that the sim800 driver is much to be needed as Simcom considers the sim800 as the new sim900.
> I "fear" that merging the two drivers will end up in a big file having a lot of "if...else" for every different feature
> between those two drivers. Whereas having the two separate for some time will allow to address the use of sim800's new features
> and support legacy sim900.

It might not be as bad as you think.  Besides, if we determine at some 
future date, that sim800 and sim900 are different enough to warrant 
different drivers, then we have the option of splitting them out into 
separate drivers at that time.

> 
> But as you are the maintainer, I think the decision is yours. Tell me and i'll modify my patches accordingly then preventing too much noisy commits :)
> 

My feeling is that we should merge these.  The only difference I see 
right now is a VENDOR flag tweak and an SMS Ready notification handling. 
  These don't amount to much and could be easily handled by the existing 
driver.

Regards,
-Denis

Re: [PATCH 1/3] sim800: adding support for Simcom SIM800 modem

[Clement Viel]

[-- Attachment #1: Type: text/plain, Size: 3932 bytes --]


On Wed, Sep 19, 2018 at 08:03:27PM +0300, Pičugins Arsenijs wrote:
Hi,

I guess I submit it in a hurry and forgot to add the firmware version.
BTW, your problem may be related to this. Are you sure your CMUX command is not returning an error ? Thus preventing ofono from enabling the modem ? I had this problem and Simcom sent me an updated firmware that supports the CMUX command.

> <div>Hello!</div><div> </div><div>&gt; You might want to describe how this is different from sim900 that it<br />&gt; warrants a fully separate driver?</div><div> </div><div>I've tried to apply this patch yesterday evening (since I too am</div><div>interested in SIM800 integration) and tried to apply it, patch 2</div><div>doesn't apply on current master for some reason. Here's a diff</div><div>between current SIM900 and this SIM800:</div><div><a href="https://matrix.org/_matrix/media/v1/download/matrix.org/KqDxbcuYLxrcceUfRorxYgus" data-external="true">https://matrix.org/_matrix/media/v1/download/matrix.org/KqDxbcuYLxrcceUfRorxYgus</a></div><div> </div><div>tl;dr: apart from</div><div> </div><div>- adding phonebook support (two lines, I don't understand it quite yet)</div><div>- the sleep() hack</div><div>- a comment clarifying a problem with some unknown version of firmware</div><div>- DBG() log calls</div><div>- sim900 =&gt; sim800 renaming</div><div> </div><div>it's no different than current SIM900 driver. Unfortunately, that</div><div>doesn't solve the problems I'm personally experiencing (hang on</div><div>CFUN, for one).</div><div> </div><div>Cheers!<br />Arsenijs</div><div> </div><div>19.09.2018, 19:51, "Denis Kenzior" &lt;denkenz(a)gmail.com&gt;:</div><blockquote type="cite"><p>Hi,<br /><br />On 09/18/2018 03:36 PM, ClémentViel wrote:</p><blockquote> From: clem &lt;<a data-external="true" href="mailto:vielclement@gmail.com">vielclement(a)gmail.com</a>&gt;<br /> </blockquote><p><br />You might want to describe how this is different from sim900 that it<br />warrants a fully separate driver?<br /><br />If there are only minor differences, then this can be handled via UDEV<br />attributes or querying +CGMM, etc.<br /> </p><blockquote> ---<br />   Makefile.am | 4 +<br />   plugins/sim800.c | 424 +++++++++++++++++++++++++++++++++++++++++++++++++++++++<br />   2 files changed, 428 insertions(+)<br />   create mode 100644 plugins/sim800.c<br /> </blockquote><p><br />&lt;snip&gt;<br /> </p><blockquote> +<br /> +static void sim800_post_sim(struct ofono_modem *modem)<br /> +{<br /> + struct sim800_data *data = ofono_modem_get_data(modem);<br /> + struct ofono_gprs *gprs;<br /> + struct ofono_gprs_context *gc;<br /> +<br /> + DBG("%p", modem);<br /> +<br /> + /* Dirty Hack : give some time to sim800 for multiplexing<br /> + * to be effective and avoid VOICE_DLC to be<br /> + * flooded thus leading to a "famine" situation<br /> + */<br /> +<br /> + sleep(2);</blockquote><p><br />No sleeps inside plugins. That blocks the entire daemon and we can't<br />have that. How does this help you anyway? GAtChat is a queue, so only<br />1 command is outstanding at a time.<br /> </p><blockquote> + ofono_sms_create(modem, OFONO_VENDOR_SIMCOM, "atmodem",<br /> + data-&gt;dlcs[SMS_DLC]);<br /> +<br /> +<br /> + gprs = ofono_gprs_create(modem, 0, "atmodem", data-&gt;dlcs[GPRS_DLC]);<br /> + if (gprs == NULL)<br /> + return;<br /> +<br /> + gc = ofono_gprs_context_create(modem, OFONO_VENDOR_SIMCOM,<br /> + "atmodem", data-&gt;dlcs[GPRS_DLC]);<br /> + if (gc)<br /> + ofono_gprs_add_context(gprs, gc);<br /> +}<br /> +</blockquote><p><br />Regards,<br />-Denis<br />_______________________________________________<br />ofono mailing list<br /><a data-external="true" href="mailto:ofono@ofono.org">ofono(a)ofono.org</a><br /><a href="https://lists.ofono.org/mailman/listinfo/ofono">https://lists.ofono.org/mailman/listinfo/ofono</a></p></blockquote>

Re: [PATCH 1/3] sim800: adding support for Simcom SIM800 modem

[Clement Viel]

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On Wed, Sep 19, 2018 at 11:51:26AM -0500, Denis Kenzior wrote:

Hi,

> Hi,
> 
> On 09/18/2018 03:36 PM, ClémentViel wrote:
> >From: clem <vielclement@gmail.com>
> >
> 
> You might want to describe how this is different from sim900 that it
> warrants a fully separate driver?
> 
> If there are only minor differences, then this can be handled via UDEV
> attributes or querying +CGMM, etc.
> 
> >---
> >  Makefile.am      |   4 +
> >  plugins/sim800.c | 424 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
> >  2 files changed, 428 insertions(+)
> >  create mode 100644 plugins/sim800.c
> >

I guess I went straightforward and because sim800 wasn't supported I wanted to add it as a plugin.
Sim800 is really close from sim900, in fact theey are compatible. But because sim800 series are newer.
sim800 have more AT commands than sim900  so maybe the compatibility won't be complete if the two drivers are merged...


> 
> <snip>
> 
> >+
> >+static void sim800_post_sim(struct ofono_modem *modem)
> >+{
> >+	struct sim800_data *data = ofono_modem_get_data(modem);
> >+	struct ofono_gprs *gprs;
> >+	struct ofono_gprs_context *gc;
> >+
> >+	DBG("%p", modem);
> >+
> >+	/* Dirty Hack : give some time to sim800 for multiplexing
> >+	 *				to be effective and avoid VOICE_DLC to be
> >+	 *				flooded thus leading to a "famine" situation
> >+	 */
> >+
> >+	sleep(2);
> 
> No sleeps inside plugins.  That blocks the entire daemon and we can't have
> that.  How does this help you anyway?  GAtChat is a queue, so only 1 command
> is outstanding at a time.

Yep that's why the "Dirty Hack" comment, I'll try another trick, there is an URC that we can trigger on.

> 
> >+	ofono_sms_create(modem, OFONO_VENDOR_SIMCOM, "atmodem",
> >+						data->dlcs[SMS_DLC]);
> >+
> >+
> >+	gprs = ofono_gprs_create(modem, 0, "atmodem", data->dlcs[GPRS_DLC]);
> >+	if (gprs == NULL)
> >+		return;
> >+
> >+	gc = ofono_gprs_context_create(modem, OFONO_VENDOR_SIMCOM,
> >+					"atmodem", data->dlcs[GPRS_DLC]);
> >+	if (gc)
> >+		ofono_gprs_add_context(gprs, gc);
> >+}
> >+
> 
> Regards,
> -Denis

Regards 
Clement

Re: [PATCH 1/3] sim800: adding support for Simcom SIM800 modem

[=?unknown-8bit?q?Pi=C4=8Dugins?= Arsenijs]

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Re: [PATCH 1/3] sim800: adding support for Simcom SIM800 modem

[Denis Kenzior]

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Hi,

On 09/18/2018 03:36 PM, ClémentViel wrote:
> From: clem <vielclement@gmail.com>
> 

You might want to describe how this is different from sim900 that it 
warrants a fully separate driver?

If there are only minor differences, then this can be handled via UDEV 
attributes or querying +CGMM, etc.

> ---
>   Makefile.am      |   4 +
>   plugins/sim800.c | 424 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
>   2 files changed, 428 insertions(+)
>   create mode 100644 plugins/sim800.c
> 

<snip>

> +
> +static void sim800_post_sim(struct ofono_modem *modem)
> +{
> +	struct sim800_data *data = ofono_modem_get_data(modem);
> +	struct ofono_gprs *gprs;
> +	struct ofono_gprs_context *gc;
> +
> +	DBG("%p", modem);
> +
> +	/* Dirty Hack : give some time to sim800 for multiplexing
> +	 *				to be effective and avoid VOICE_DLC to be
> +	 *				flooded thus leading to a "famine" situation
> +	 */
> +
> +	sleep(2);

No sleeps inside plugins.  That blocks the entire daemon and we can't 
have that.  How does this help you anyway?  GAtChat is a queue, so only 
1 command is outstanding at a time.

> +	ofono_sms_create(modem, OFONO_VENDOR_SIMCOM, "atmodem",
> +						data->dlcs[SMS_DLC]);
> +
> +
> +	gprs = ofono_gprs_create(modem, 0, "atmodem", data->dlcs[GPRS_DLC]);
> +	if (gprs == NULL)
> +		return;
> +
> +	gc = ofono_gprs_context_create(modem, OFONO_VENDOR_SIMCOM,
> +					"atmodem", data->dlcs[GPRS_DLC]);
> +	if (gc)
> +		ofono_gprs_add_context(gprs, gc);
> +}
> +

Regards,
-Denis

[PATCH 1/3] sim800: adding support for Simcom SIM800 modem

[=?unknown-8bit?q?Cl=C3=A9mentViel?=]

[-- Attachment #1: Type: text/plain, Size: 11416 bytes --]

From: clem <vielclement@gmail.com>

---
 Makefile.am      |   4 +
 plugins/sim800.c | 424 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 428 insertions(+)
 create mode 100644 plugins/sim800.c

diff --git a/Makefile.am b/Makefile.am
index 6dee4ce..f4d03b6 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -496,6 +496,10 @@ builtin_sources += plugins/speedupcdma.c
 builtin_modules += samsung
 builtin_sources += plugins/samsung.c
 
+builtin_modules += sim800
+builtin_sources += plugins/sim800.c
+
+
 builtin_modules += sim900
 builtin_sources += plugins/sim900.c
 
diff --git a/plugins/sim800.c b/plugins/sim800.c
new file mode 100644
index 0000000..a69fe6d
--- /dev/null
+++ b/plugins/sim800.c
@@ -0,0 +1,424 @@
+/*
+ *
+ *  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 <unistd.h>
+#include <glib.h>
+#include <gatchat.h>
+#include <gattty.h>
+#include <gatmux.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/sms.h>
+#include <ofono/ussd.h>
+#include <ofono/gprs.h>
+#include <ofono/gprs-context.h>
+#include <ofono/phonebook.h>
+#include <ofono/history.h>
+#include <ofono/log.h>
+#include <ofono/voicecall.h>
+#include <ofono/call-volume.h>
+#include <drivers/atmodem/vendor.h>
+
+#define NUM_DLC 5
+
+#define VOICE_DLC   0
+#define NETREG_DLC  1
+#define SMS_DLC     2
+#define GPRS_DLC    3
+#define SETUP_DLC   4
+
+static char *dlc_prefixes[NUM_DLC] = { "Voice: ", "Net: ", "SMS: ",
+					"GPRS: " , "Setup: "};
+
+static const char *none_prefix[] = { NULL };
+
+struct sim800_data {
+	GIOChannel *device;
+	GAtMux *mux;
+	GAtChat * dlcs[NUM_DLC];
+	guint frame_size;
+};
+
+static int sim800_probe(struct ofono_modem *modem)
+{
+	struct sim800_data *data;
+
+	DBG("%p", modem);
+
+	data = g_try_new0(struct sim800_data, 1);
+	if (data == NULL)
+		return -ENOMEM;
+
+	ofono_modem_set_data(modem, data);
+
+	return 0;
+}
+
+static void sim800_remove(struct ofono_modem *modem)
+{
+	struct sim800_data *data = ofono_modem_get_data(modem);
+
+	DBG("%p", modem);
+
+	ofono_modem_set_data(modem, NULL);
+
+	g_free(data);
+}
+
+static void sim800_debug(const char *str, void *user_data)
+{
+	const char *prefix = user_data;
+
+	ofono_info("%s%s", prefix, str);
+}
+
+static GAtChat *open_device(struct ofono_modem *modem,
+			const char *key, char *debug)
+{
+	struct sim800_data *data = ofono_modem_get_data(modem);
+	const char *device;
+	GAtSyntax *syntax;
+	GIOChannel *channel;
+	GAtChat *chat;
+	GHashTable *options;
+
+	device = ofono_modem_get_string(modem, key);
+	if (device == NULL) {
+		DBG("couldn't get string %s",key);
+		return NULL;
+	}
+
+	DBG("%s %s", key, device);
+
+	options = g_hash_table_new(g_str_hash, g_str_equal);
+	if (options == NULL) {
+		DBG("options is 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, "Local", "off");
+	g_hash_table_insert(options, "RtsCts", "off");
+	g_hash_table_insert(options, "Read", "on");
+
+	channel = g_at_tty_open(device, options);
+	g_hash_table_destroy(options);
+
+	if (channel == NULL){
+		DBG("serial channel couldn't be opened");
+		return NULL;
+	}
+
+	data->device = channel;
+	syntax = g_at_syntax_new_gsm_permissive();
+	chat = g_at_chat_new(channel, syntax);
+	g_at_syntax_unref(syntax);
+
+	if (chat == NULL) {
+		g_io_channel_unref(data->device);
+		data->device = NULL;
+		DBG("at channel couldn't be opened");
+
+		return NULL;
+	}
+
+	if (getenv("OFONO_AT_DEBUG"))
+		g_at_chat_set_debug(chat, sim800_debug, debug);
+
+	return chat;
+}
+
+static GAtChat *create_chat(GIOChannel *channel, struct ofono_modem *modem,
+				char *debug)
+{
+	GAtSyntax *syntax;
+	GAtChat *chat;
+
+	if (channel == NULL)
+		return NULL;
+
+	syntax = g_at_syntax_new_gsmv1();
+	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")) {
+		DBG("AT DEBUG enabled");
+		g_at_chat_set_debug(chat, sim800_debug, debug);
+	}
+
+	return chat;
+}
+
+static void shutdown_device(struct sim800_data *data)
+{
+	int i;
+
+	DBG("");
+
+	for (i = 0; i < NUM_DLC; i++) {
+		if (data->dlcs[i] == NULL)
+			continue;
+
+		g_at_chat_unref(data->dlcs[i]);
+		data->dlcs[i] = NULL;
+	}
+
+	if (data->mux) {
+		g_at_mux_shutdown(data->mux);
+		g_at_mux_unref(data->mux);
+		data->mux = NULL;
+	}
+
+	g_io_channel_unref(data->device);
+	data->device = NULL;
+}
+
+static void setup_internal_mux(struct ofono_modem *modem)
+{
+	struct sim800_data *data = ofono_modem_get_data(modem);
+	int i;
+
+	DBG("");
+
+	data->frame_size = 128;
+
+	data->mux = g_at_mux_new_gsm0710_basic(data->device,
+						data->frame_size);
+	if (data->mux == NULL)
+		goto error;
+
+	if (getenv("OFONO_MUX_DEBUG"))
+		g_at_mux_set_debug(data->mux, sim800_debug, "MUX: ");
+
+	if (!g_at_mux_start(data->mux)) {
+		g_at_mux_shutdown(data->mux);
+		g_at_mux_unref(data->mux);
+		goto error;
+	}
+
+	for (i = 0; i < NUM_DLC; i++) {
+		GIOChannel *channel = g_at_mux_create_channel(data->mux);
+
+		data->dlcs[i] = create_chat(channel, modem, dlc_prefixes[i]);
+		if (data->dlcs[i] == NULL) {
+			ofono_error("Failed to create channel");
+			goto error;
+		}
+	}
+
+	ofono_modem_set_powered(modem, TRUE);
+	return;
+
+error:
+	shutdown_device(data);
+	ofono_modem_set_powered(modem, FALSE);
+}
+
+static void mux_setup_cb(gboolean ok, GAtResult *result, gpointer user_data)
+{
+	struct ofono_modem *modem = user_data;
+	struct sim800_data *data = ofono_modem_get_data(modem);
+
+	DBG("");
+
+	g_at_chat_unref(data->dlcs[SETUP_DLC]);
+	data->dlcs[SETUP_DLC] = NULL;
+
+	if (!ok)
+		goto error;
+
+	setup_internal_mux(modem);
+	return;
+
+error:
+	DBG("If you are on a SIM800H modem with firmware version lower \
+		than ... CMUX command is not supported thus \
+		preventing GPRS, Voice and SMS managers to be executed simultaneously.");
+
+	shutdown_device(data);
+	ofono_modem_set_powered(modem, FALSE);
+}
+
+static void cfun_enable(gboolean ok, GAtResult *result, gpointer user_data)
+{
+	struct ofono_modem *modem = user_data;
+	struct sim800_data *data = ofono_modem_get_data(modem);
+
+	DBG("");
+
+	if (!ok) {
+		g_at_chat_unref(data->dlcs[SETUP_DLC]);
+		data->dlcs[SETUP_DLC] = NULL;
+		ofono_modem_set_powered(modem, FALSE);
+		return;
+	}
+	DBG("sending CMUX");
+	g_at_chat_send(data->dlcs[SETUP_DLC],"AT+CMUX=0,0,5,128,10,3,30,10,2", NULL,mux_setup_cb, modem, NULL);
+
+}
+
+static int sim800_enable(struct ofono_modem *modem)
+{
+	struct sim800_data *data = ofono_modem_get_data(modem);
+
+	DBG("%p", modem);
+
+	data->dlcs[SETUP_DLC] = open_device(modem, "Device", "Setup: ");
+	if (data->dlcs[SETUP_DLC] == NULL){
+		DBG("couldn't open device");
+		return -EINVAL;
+	}
+
+	g_at_chat_send(data->dlcs[SETUP_DLC], "ATE0", NULL, NULL, NULL, NULL);
+	g_at_chat_send(data->dlcs[SETUP_DLC], "AT+CFUN=1", none_prefix,
+					cfun_enable, modem, NULL);
+
+	return -EINPROGRESS;
+}
+
+static void cfun_disable(gboolean ok, GAtResult *result, gpointer user_data)
+{
+	struct ofono_modem *modem = user_data;
+	struct sim800_data *data = ofono_modem_get_data(modem);
+
+	DBG("");
+
+	shutdown_device(data);
+
+	if (ok)
+		ofono_modem_set_powered(modem, FALSE);
+}
+
+static int sim800_disable(struct ofono_modem *modem)
+{
+	struct sim800_data *data = ofono_modem_get_data(modem);
+
+	DBG("%p", modem);
+
+	g_at_chat_send(data->dlcs[SETUP_DLC], "AT+CFUN=4", none_prefix,
+					cfun_disable, modem, NULL);
+
+	return -EINPROGRESS;
+}
+
+static void sim800_pre_sim(struct ofono_modem *modem)
+{
+	struct sim800_data *data = ofono_modem_get_data(modem);
+	struct ofono_sim *sim;
+
+	DBG("%p %x", modem, data);
+
+	ofono_devinfo_create(modem, 0, "atmodem", data->dlcs[VOICE_DLC]);
+	DBG("devinfo created");
+	sim = ofono_sim_create(modem, OFONO_VENDOR_SIMCOM, "atmodem",
+						data->dlcs[VOICE_DLC]);
+	DBG("sim created created");
+
+	if (sim)
+		ofono_sim_inserted_notify(sim, TRUE);
+
+	DBG("pre sim finished");
+}
+
+static void sim800_post_sim(struct ofono_modem *modem)
+{
+	struct sim800_data *data = ofono_modem_get_data(modem);
+	struct ofono_gprs *gprs;
+	struct ofono_gprs_context *gc;
+
+	DBG("%p", modem);
+
+	/* Dirty Hack : give some time to sim800 for multiplexing
+	 *				to be effective and avoid VOICE_DLC to be
+	 *				flooded thus leading to a "famine" situation
+	 */
+
+	sleep(2);
+	ofono_sms_create(modem, OFONO_VENDOR_SIMCOM, "atmodem",
+						data->dlcs[SMS_DLC]);
+
+
+	gprs = ofono_gprs_create(modem, 0, "atmodem", data->dlcs[GPRS_DLC]);
+	if (gprs == NULL)
+		return;
+
+	gc = ofono_gprs_context_create(modem, OFONO_VENDOR_SIMCOM,
+					"atmodem", data->dlcs[GPRS_DLC]);
+	if (gc)
+		ofono_gprs_add_context(gprs, gc);
+}
+
+static void sim800_post_online(struct ofono_modem *modem)
+{
+	struct sim800_data *data = ofono_modem_get_data(modem);
+
+	DBG("%p", modem);
+
+	ofono_phonebook_create(modem, 0, "atmodem", data->dlcs[VOICE_DLC]);
+	ofono_netreg_create(modem, OFONO_VENDOR_SIMCOM,
+			"atmodem", data->dlcs[NETREG_DLC]);
+	ofono_ussd_create(modem, 0, "atmodem", data->dlcs[VOICE_DLC]);
+	ofono_voicecall_create(modem, 0, "atmodem", data->dlcs[VOICE_DLC]);
+	ofono_call_volume_create(modem, 0, "atmodem", data->dlcs[VOICE_DLC]);
+}
+
+static struct ofono_modem_driver sim800_driver = {
+	.name		= "sim800",
+	.probe		= sim800_probe,
+	.remove		= sim800_remove,
+	.enable		= sim800_enable,
+	.disable	= sim800_disable,
+	.pre_sim	= sim800_pre_sim,
+	.post_sim	= sim800_post_sim,
+	.post_online	= sim800_post_online,
+};
+
+static int sim800_init(void)
+{
+	return ofono_modem_driver_register(&sim800_driver);
+}
+
+static void sim800_exit(void)
+{
+	ofono_modem_driver_unregister(&sim800_driver);
+}
+
+OFONO_PLUGIN_DEFINE(sim800, "SIM800 modem driver", VERSION,
+		OFONO_PLUGIN_PRIORITY_DEFAULT, sim800_init, sim800_exit)
-- 
2.7.4