From 62d8cf7aa3faf2055be132f25bfb164178fba8a0 Mon Sep 17 00:00:00 2001
From: Denis Kenzior <denkenz@gmail.com>
Date: Thu, 10 Dec 2009 17:41:42 -0600
Subject: Fix: Fix gsmdial to handle MD300

MD300 never sends a CGREG indication, we must query it after CGATT
---
 gatchat/gsmdial.c | 124 ++++++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 102 insertions(+), 22 deletions(-)

(limited to 'gatchat')

diff --git a/gatchat/gsmdial.c b/gatchat/gsmdial.c
index a2433f09..ff2389aa 100644
--- a/gatchat/gsmdial.c
+++ b/gatchat/gsmdial.c
@@ -35,6 +35,7 @@
 #include <gattty.h>
 
 static const char *none_prefix[] = { NULL };
+static const char *cgreg_prefix[] = { "+CGREG:", NULL };
 
 static gchar *option_ip = NULL;
 static gint option_port = 0;
@@ -148,6 +149,58 @@ out:
 	return TRUE;
 }
 
+static gboolean at_util_parse_reg(GAtResult *result, const char *prefix,
+					int *mode, int *status,
+					int *lac, int *ci, int *tech)
+{
+	GAtResultIter iter;
+	int m, s;
+	int l = -1, c = -1, t = -1;
+	const char *str;
+
+	g_at_result_iter_init(&iter, result);
+
+	while (g_at_result_iter_next(&iter, prefix)) {
+		g_at_result_iter_next_number(&iter, &m);
+
+		/* Sometimes we get an unsolicited CREG/CGREG here, skip it */
+		if (g_at_result_iter_next_number(&iter, &s) == FALSE)
+			continue;
+
+		if (g_at_result_iter_next_string(&iter, &str) == TRUE)
+			l = strtol(str, NULL, 16);
+		else
+			goto out;
+
+		if (g_at_result_iter_next_string(&iter, &str) == TRUE)
+			c = strtol(str, NULL, 16);
+		else
+			goto out;
+
+		g_at_result_iter_next_number(&iter, &t);
+
+out:
+		if (mode)
+			*mode = m;
+
+		if (status)
+			*status = s;
+
+		if (lac)
+			*lac = l;
+
+		if (ci)
+			*ci = c;
+
+		if (tech)
+			*tech = t;
+
+		return TRUE;
+	}
+	
+	return FALSE;
+}
+
 static void at_cgact_up_cb(gboolean ok, GAtResult *result, gpointer user_data)
 {
 	char buf[64];
@@ -176,31 +229,24 @@ static void at_cgdcont_cb(gboolean ok, GAtResult *result, gpointer user_data)
 	g_at_chat_send(control, buf, none_prefix, at_cgact_up_cb, NULL, NULL);
 }
 
-static void creg_notify(GAtResult *result, gpointer user_data)
+static void setup_context(int status)
 {
-	int status, lac, ci, tech;
+	char buf[1024];
+	int len;
 
-	if (state != STATE_REGISTERING)
-		return;
+	state = STATE_ACTIVATING;
 
-	if (at_util_parse_reg_unsolicited(result, "+CREG:", &status,
-				&lac, &ci, &tech) == FALSE)
-		return;
+	g_print("Registered to GPRS network, roaming=%s\n",
+			status == 5 ? "True" : "False");
 
-	if (status == 1 || status == 5) {
-		g_print("Registered to network, roaming=%s\n",
-				status == 5 ? "True" : "False");
-		g_print("Activating gprs network...\n");
-		g_at_chat_send(control, "AT+CGATT=1", none_prefix,
-				NULL, NULL, NULL);
-	}
+	len = sprintf(buf, "AT+CGDCONT=%u,\"IP\"", option_cid);
+	snprintf(buf + len, sizeof(buf) - len - 3, ",\"%s\"", option_apn);
+	g_at_chat_send(control, buf, none_prefix, at_cgdcont_cb, NULL, NULL);
 }
 
 static void cgreg_notify(GAtResult *result, gpointer user_data)
 {
 	int status, lac, ci, tech;
-	char buf[1024];
-	int len;
 
 	if (state != STATE_REGISTERING)
 		return;
@@ -212,16 +258,50 @@ static void cgreg_notify(GAtResult *result, gpointer user_data)
 	if (status != 1 && status != 5)
 		return;
 
-	state = STATE_ACTIVATING;
+	setup_context(status);
+}
 
-	g_print("Registered to GPRS network, roaming=%s\n",
-			status == 5 ? "True" : "False");
+static void cgreg_cb(gboolean ok, GAtResult *result, gpointer user_data)
+{
+	int status, lac, ci, tech;
 
-	len = sprintf(buf, "AT+CGDCONT=%u,\"IP\"", option_cid);
+	if (at_util_parse_reg(result, "+CGREG:", NULL, &status,
+				&lac, &ci, &tech) == FALSE)
+		return;
 
-	snprintf(buf + len, sizeof(buf) - len - 3, ",\"%s\"", option_apn);
+	if (status != 1 && status != 5)
+		return;
 
-	g_at_chat_send(control, buf, none_prefix, at_cgdcont_cb, NULL, NULL);
+	setup_context(status);
+}
+
+static void attached_cb(gboolean ok, GAtResult *result, gpointer user_data)
+{
+	if (!ok)
+		return;
+
+	g_at_chat_send(control, "AT+CGREG?", cgreg_prefix,
+			cgreg_cb, NULL, NULL);
+}
+
+static void creg_notify(GAtResult *result, gpointer user_data)
+{
+	int status, lac, ci, tech;
+
+	if (state != STATE_REGISTERING)
+		return;
+
+	if (at_util_parse_reg_unsolicited(result, "+CREG:", &status,
+				&lac, &ci, &tech) == FALSE)
+		return;
+
+	if (status == 1 || status == 5) {
+		g_print("Registered to network, roaming=%s\n",
+				status == 5 ? "True" : "False");
+		g_print("Activating gprs network...\n");
+		g_at_chat_send(control, "AT+CGATT=1", none_prefix,
+				attached_cb, NULL, NULL);
+	}
 }
 
 static void register_cb(gboolean ok, GAtResult *result, gpointer user_data)
-- 
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