[PATCH 4/6] qmi: gprs: Query default profile number at init

[Denis Kenzior <denkenz@gmail.com>]

The current logic queries the default profile id every time the driver
believes the default bearer has been attached.  However, oFono does not
modify the default profile number during its runtime.  Query the default
profile id at initialization time instead.

While here, remove some magic numbers in favor of defined constants.
---
 drivers/qmimodem/gprs.c | 136 ++++++++++++++++++----------------------
 1 file changed, 61 insertions(+), 75 deletions(-)

diff --git a/drivers/qmimodem/gprs.c b/drivers/qmimodem/gprs.c
index 72509d433bc6..738271905848 100644
--- a/drivers/qmimodem/gprs.c
+++ b/drivers/qmimodem/gprs.c
@@ -38,7 +38,7 @@ struct gprs_data {
 	struct qmi_device *dev;
 	struct qmi_service *nas;
 	struct qmi_service *wds;
-	unsigned int last_auto_context_id;
+	unsigned int default_profile;
 	uint16_t serving_system_indication_id;
 };
 
@@ -116,46 +116,12 @@ static void get_lte_attach_param_cb(struct qmi_result *result, void *user_data)
 	if (qmi_result_get_uint8(result, 0x11, &iptype))
 		ofono_info("LTE attach IP type: %hhd", iptype);
 
-	ofono_gprs_cid_activated(gprs, data->last_auto_context_id, apn);
+	ofono_gprs_cid_activated(gprs, data->default_profile, apn);
 	l_free(apn);
 
 	return;
 
 noapn:
-	data->last_auto_context_id = 0;
-	ofono_error("LTE bearer established but APN not set");
-}
-
-static void get_default_profile_cb(struct qmi_result *result, void *user_data)
-{
-	struct ofono_gprs* gprs = user_data;
-	struct gprs_data *data = ofono_gprs_get_data(gprs);
-	uint16_t error;
-	uint8_t index;
-
-	DBG("");
-
-	if (qmi_result_set_error(result, &error)) {
-		ofono_error("Get default profile error: %hd", error);
-		goto error;
-	}
-
-	/* Profile index */
-	if (!qmi_result_get_uint8(result, 0x01, &index)) {
-		ofono_error("Failed query default profile");
-		goto error;
-	}
-
-	DBG("Default profile index: %hhd", index);
-
-	data->last_auto_context_id = index;
-
-	if (qmi_service_send(data->wds, QMI_WDS_GET_LTE_ATTACH_PARAMETERS,
-				NULL, get_lte_attach_param_cb, gprs, NULL) > 0)
-		return;
-
-error:
-	data->last_auto_context_id = 0;
 	ofono_error("LTE bearer established but APN not set");
 }
 
@@ -167,41 +133,16 @@ error:
 static void get_lte_attach_params(struct ofono_gprs* gprs)
 {
 	struct gprs_data *data = ofono_gprs_get_data(gprs);
-	struct {
-		uint8_t type;
-		uint8_t family;
-	} __attribute((packed)) p = {
-		.type = 0,   /* 3GPP */
-		.family = 0, /* embedded */
-	};
-	struct qmi_param *param;
 
 	DBG("");
 
-	if (data->last_auto_context_id != 0)
-		return; /* Established or in progress */
-
-	/* Set query in progress */
-	data->last_auto_context_id = -1;
-
-	/* First we query the default profile in order to find out which
-	 * context the modem has activated.
-	 */
-	param = qmi_param_new();
-
-	/* Profile type */
-	qmi_param_append(param, 0x1, sizeof(p), &p);
-
-	if (qmi_service_send(data->wds, QMI_WDS_GET_DEFAULT_PROFILE_NUMBER,
-				param, get_default_profile_cb, gprs, NULL) > 0)
+	if (qmi_service_send(data->wds, QMI_WDS_GET_LTE_ATTACH_PARAMETERS,
+				NULL, get_lte_attach_param_cb, gprs, NULL) > 0)
 		return;
-
-	qmi_param_free(param);
 }
 
 static int handle_ss_info(struct qmi_result *result, struct ofono_gprs *gprs)
 {
-	struct gprs_data *data = ofono_gprs_get_data(gprs);
 	int status;
 	int tech;
 	int bearer_tech;
@@ -222,8 +163,6 @@ static int handle_ss_info(struct qmi_result *result, struct ofono_gprs *gprs)
 			 */
 			get_lte_attach_params(gprs);
 		}
-	} else {
-		data->last_auto_context_id = 0;
 	}
 
 	/* DC is optional so only notify on successful extraction */
@@ -337,20 +276,29 @@ static void qmi_attached_status(struct ofono_gprs *gprs,
 	l_free(cbd);
 }
 
-static void create_wds_cb(struct qmi_service *service, void *user_data)
+static void get_default_profile_cb(struct qmi_result *result, void *user_data)
 {
+	static const uint8_t RESULT_DEFAULT_PROFILE_NUMBER = 0x1;
 	struct ofono_gprs *gprs = user_data;
 	struct gprs_data *data = ofono_gprs_get_data(gprs);
+	uint16_t error;
+	uint8_t index;
 
-	DBG("");
+	if (qmi_result_set_error(result, &error)) {
+		ofono_error("Get default profile error: %hd", error);
+		goto error;
+	}
 
-	if (!service) {
-		ofono_error("Failed to request WDS service");
-		ofono_gprs_remove(gprs);
-		return;
+	/* Profile index */
+	if (!qmi_result_get_uint8(result, RESULT_DEFAULT_PROFILE_NUMBER,
+								&index)) {
+		ofono_error("Failed query default profile");
+		goto error;
 	}
 
-	data->wds = service;
+	DBG("Default profile index: %hhd", index);
+	data->default_profile = index;
+	ofono_gprs_set_cid_range(gprs, index, index);
 
 	/*
 	 * First get the SS info - the modem may already be connected,
@@ -358,15 +306,53 @@ static void create_wds_cb(struct qmi_service *service, void *user_data)
 	 */
 	qmi_service_send(data->nas, QMI_NAS_GET_SERVING_SYSTEM, NULL,
 					ss_info_notify, gprs, NULL);
-
 	data->serving_system_indication_id =
 		qmi_service_register(data->nas,
 					QMI_NAS_SERVING_SYSTEM_INDICATION,
 					ss_info_notify, gprs, NULL);
 
-	ofono_gprs_set_cid_range(gprs, 1, 1);
-
 	ofono_gprs_register(gprs);
+	return;
+error:
+	ofono_gprs_remove(gprs);
+}
+
+static void create_wds_cb(struct qmi_service *service, void *user_data)
+{
+	struct ofono_gprs *gprs = user_data;
+	struct gprs_data *data = ofono_gprs_get_data(gprs);
+	struct {
+		uint8_t type;
+		uint8_t family;
+	} __attribute((packed)) p = {
+		.type = QMI_WDS_PROFILE_TYPE_3GPP,
+		.family = QMI_WDS_PROFILE_FAMILY_EMBEDDED,
+	};
+	struct qmi_param *param;
+
+	DBG("");
+
+	if (!service) {
+		ofono_error("Failed to request WDS service");
+		goto error;
+	}
+
+	data->wds = service;
+
+	/*
+	 * Query the default profile.  We never change the default profile
+	 * number, so querying it once should be sufficient
+	 */
+	param = qmi_param_new();
+	qmi_param_append(param, QMI_WDS_PARAM_PROFILE_TYPE, sizeof(p), &p);
+
+	if (qmi_service_send(data->wds, QMI_WDS_GET_DEFAULT_PROFILE_NUMBER,
+				param, get_default_profile_cb, gprs, NULL) > 0)
+		return;
+
+	qmi_param_free(param);
+error:
+	ofono_gprs_remove(gprs);
 }
 
 static void create_nas_cb(struct qmi_service *service, void *user_data)
-- 
2.44.0