Hi Anthony,

On 03/22/2013 05:36 AM, Anthony Viallard wrote:
Add SIMCOM support.

Implemented using SIM5216E module and ofono 1.12.

  - based on SIM5215_SIM5216_ATC_V1.18.pdf documentation ;
  - SMS and GPRS work (in the same time) ;
  - SIM card presence check ;
  - use GSM charset ;
  - use 115200bps, 8 bit data, no parity, 1 bit stop, no data stream control
    for tty configuration ;
  - flight mode support ;
  - No voice part (because I can't test it).

--- ofono-1.12.orig/Makefile.am 2012-04-20 21:06:29.000000000 +0200
+++ ofono-1.12/Makefile.am      2013-01-21 17:17:48.089627277 +0100

Please send this using git send-email.  I cannot apply these patches:

Applying: SIMCOM plugin driver
fatal: sha1 information is lacking or useless (Makefile.am).
Repository lacks necessary blobs to fall back on 3-way merge.
Cannot fall back to three-way merge.
Patch failed at 0001 SIMCOM plugin driver
When you have resolved this problem run "git am --resolved".
If you would prefer to skip this patch, instead run "git am --skip".
To restore the original branch and stop patching run "git am --abort".

@@ -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
--- /dev/null   2013-01-28 10:34:59.843091650 +0100
+++ ofono-1.12/plugins/simcom.c 2013-02-15 16:16:38.058552544 +0100
@@ -0,0 +1,434 @@
+/*
+ *
+ *  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<stdio.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>
+
+#define MAX_IGNITION_POOL_CALL    7
+
+#define CMEERR_SIMBUSY           14
+
+static const char *none_prefix[] = { NULL };
+
+struct simcom_data {
+       GAtChat *modem;
+       GAtChat *chat;
+       guint ignition_pool;
+       unsigned int ignition_pool_call;
+       unsigned int at_ignition_pending;
+       ofono_bool_t have_sim;
+};
+
+/* 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 gboolean simcom_ignition(gpointer user_data)
+{
+       struct ofono_modem *modem = user_data;
+       struct simcom_data *data = ofono_modem_get_data(modem);
+
+       ++data->ignition_pool_call;
+
+       if(data->at_ignition_pending>  0)
+       {
+               if(data->ignition_pool_call>  MAX_IGNITION_POOL_CALL)
+               {
+                       ofono_error("Ignition timeout");
+                       return FALSE;
+               }
+
+               /* Waiting reply of AT commands */
+               DBG("Waiting AT reply...");
+               return TRUE;
+       }
+
+       ofono_modem_set_powered(modem, TRUE);
+
+       return FALSE;
+}
+
+static void simcom_sim_status(gboolean ok, GAtResult *result, gpointer 
user_data)
+{
+       struct ofono_modem *modem = user_data;
+       struct ofono_error error;
+       struct simcom_data *data = ofono_modem_get_data(modem);
+
+       --data->at_ignition_pending;
+
+       if(!ok)
+       {
+               decode_at_error(&error, g_at_result_final_response(result));
+               if(error.type == OFONO_ERROR_TYPE_CME)
+               {
+                       if(error.error == CMEERR_SIMBUSY)
+                       {
+                               DBG("System is busy. Retry...");
+                               g_at_chat_send(data->chat, "AT+CPIN?",
+                                              none_prefix,
+                                              simcom_sim_status, modem,
+                                              NULL);
+                               ++data->at_ignition_pending;
+                               return;
+                       }
+               }
+
+               data->have_sim = FALSE;
+               return;
+       }
+
+       /* If doesn't have an "fatal" error on AT+CPIN request,
+        * we can guess there a SIM card ...
+        */
+       data->have_sim = TRUE;
+}
+
+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->chat);
+               data->chat = NULL;
+
+               ofono_modem_set_powered(modem, FALSE);
+               return;
+       }
+
+       /* Get model and sim card status */
+       data->at_ignition_pending = 0;
+
+       g_at_chat_send(data->chat, "AT+CPIN?", none_prefix,
+                      simcom_sim_status, modem, NULL);
+       ++data->at_ignition_pending;
+
+       data->ignition_pool = g_timeout_add_seconds(1,
+                                                   simcom_ignition,
+                                                   modem);

Are you polling CPIN for signs of life? In that case, there's a convenience function for this. Grep for at_util_sim_state_query_new, it takes care of all the magic for you.

+}
+
+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->chat);
+       data->chat = NULL;
+
+       if (ok)
+               ofono_modem_set_powered(modem, FALSE);
+}
+
+static void flightmode_cb(gboolean ok, GAtResult *result, gpointer user_data)
+{
+       struct cb_data *cbd = user_data;
+       ofono_modem_online_cb_t cb = cbd->cb;
+       struct ofono_error error;
+
+       decode_at_error(&error, g_at_result_final_response(result));
+       cb(&error, cbd->data);
+}
+
+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)
+       {
+               ofono_error("Failed to get modem '%s'", key);
+               return NULL;
+       }

Wrong coding style

+
+       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");
+
+       channel = g_at_tty_open(device, options);
+
+       /* g_hash_table_destroy(options); */

Why is this commented out?

+
+       if (channel == NULL)
+       {
+               ofono_error("Failed to get tty for '%s'", key);
+               return NULL;
+       }

Coding style is wrong, please see below.

+
+       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)
+       {
+               ofono_error("Failed to get chat for '%s'", key);
+               return NULL;
+       }

Again, coding style is wrong.  Please see below.

+
+       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);
+
+       if(data->ignition_pool>  0)
+       {
+               g_source_remove(data->ignition_pool);
+               data->ignition_pool = 0;
+       }
+
+       ofono_modem_set_data(modem, NULL);
+
+       /* Cleanup after hot-unplug */
+       g_at_chat_unref(data->chat);
+
+       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->chat = open_device(modem, "Data", "Data: ");
+       if (data->chat == NULL) {
+               g_at_chat_unref(data->modem);
+               data->modem = NULL;
+               return -EIO;
+       }
+
+       g_at_chat_set_slave(data->modem, data->chat);
+
+       g_at_chat_blacklist_terminator(data->chat,
+                                       G_AT_CHAT_TERMINATOR_NO_CARRIER);
+
+       /* Configure AT commands behavior */
+       g_at_chat_send(data->modem, "ATE0 +CMEE=1", NULL, NULL, NULL, NULL);
+       g_at_chat_send(data->chat, "ATE0 +CMEE=1", NULL, NULL, NULL, NULL);
+
+       /* Ensure that the modem is using GSM character set and not IRA */
+       g_at_chat_send(data->modem, "AT+CSCS=\"GSM\"", none_prefix,
+                       NULL, NULL, NULL);
+       g_at_chat_send(data->chat, "AT+CSCS=\"GSM\"", none_prefix,
+                       NULL, NULL, NULL);
+
+       /* Make it up */
+       g_at_chat_send(data->chat, "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->chat);
+       g_at_chat_unregister_all(data->chat);
+
+       g_at_chat_send(data->chat, "AT+CFUN=4", none_prefix,
+                      cfun_disable, modem, NULL);
+
+       return -EINPROGRESS;
+}
+
+static void simcom_set_online(struct ofono_modem *modem, ofono_bool_t online,
+                              ofono_modem_online_cb_t cb, void *user_data)
+{
+       struct simcom_data *data = ofono_modem_get_data(modem);
+       struct cb_data *cbd = cb_data_new(cb, user_data);
+       char const *command = online ? "AT+CFUN=1" : "AT+CFUN=4";
+
+       DBG("modem %p %s", modem, online ? "online" : "offline");
+
+       if (g_at_chat_send(data->chat, command, none_prefix,
+                          flightmode_cb, cbd, g_free)>  0)
+               return;
+
+       CALLBACK_WITH_FAILURE(cb, cbd->data);
+
+       g_free(cbd);
+}
+
+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->chat);
+       sim = ofono_sim_create(modem, OFONO_VENDOR_SIMCOM, "atmodem",
+                               data->chat);
+
+       if (sim)
+               ofono_sim_inserted_notify(sim, data->have_sim);
+}
+
+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->chat);
+
+       ofono_sms_create(modem, OFONO_VENDOR_SIMCOM, "atmodem",
+                               data->chat);
+
+       /* gprs things */

This comment is rather useless ;)

+       gprs = ofono_gprs_create(modem, 0, "atmodem", data->chat);
+       gc = ofono_gprs_context_create(modem, 0, "atmodem", data->modem);
+
+       if(gprs&&  gc)
+       {
+               ofono_gprs_add_context(gprs, gc);
+       }

This is not according to the coding style. Please refer to doc/coding-style.txt for details. In particular, there should not be any parentheses around the if. And we use the Linux kernel style, so it would look like:

if (gprs && gc) {
        foo;
        bar;
}

+}
+
+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->chat);
+       ofono_cbs_create(modem, 0, "atmodem", data->chat);
+       ofono_ussd_create(modem, 0, "atmodem", data->chat);
+}
+
+static struct ofono_modem_driver simcom_driver = {
+       .name           = "simcom",
+       .probe          = simcom_probe,
+       .remove         = simcom_remove,
+       .enable         = simcom_enable,
+       .disable        = simcom_disable,
+       .set_online     = simcom_set_online,
+       .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)

There is whitespace corruption here, do not use spaces for indentation.

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Regards,
-Denis
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