Added coex implementation in xmm7modem plugin
---
 plugins/xmm7xxx.c | 927 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 927 insertions(+)

diff --git a/plugins/xmm7xxx.c b/plugins/xmm7xxx.c
index 195f96b..2f07599 100644
--- a/plugins/xmm7xxx.c
+++ b/plugins/xmm7xxx.c
@@ -57,16 +57,911 @@
 #include <drivers/atmodem/atutil.h>
 #include <drivers/atmodem/vendor.h>
 
+#include "ofono.h"
+#include "gdbus.h"
+
+#define OFONO_COEX_INTERFACE OFONO_SERVICE ".intel.LteCoexistence"
+#define OFONO_COEX_AGENT_INTERFACE OFONO_SERVICE ".intel.LteCoexistenceAgent"
+
+#define NET_BAND_LTE_INVALID 0
+#define NET_BAND_LTE_1 101
+#define NET_BAND_LTE_43 143
+#define BAND_LEN 20
+#define MAX_BT_SAFE_VECTOR 15
+#define MAX_WL_SAFE_VECTOR 13
+
 static const char *none_prefix[] = { NULL };
 static const char *xsimstate_prefix[] = { "+XSIMSTATE:", NULL };
+static const char *xnvmplmn_prefix[] = { "+XNVMPLMN:", NULL };
+
+struct bt_coex_info {
+       int safe_tx_min;
+       int safe_tx_max;
+       int safe_rx_min;
+       int safe_rx_max;
+       int safe_vector[MAX_BT_SAFE_VECTOR];
+       int num_safe_vector;
+};
+
+struct wl_coex_info {
+       int safe_tx_min;
+       int safe_tx_max;
+       int safe_rx_min;
+       int safe_rx_max;
+       int safe_vector[MAX_BT_SAFE_VECTOR];
+       int num_safe_vector;
+};
+
+struct coex_agent {
+       char *path;
+       char *bus;
+       guint disconnect_watch;
+       ofono_bool_t remove_on_terminate;
+       ofono_destroy_func removed_cb;
+       void *removed_data;
+       DBusMessage *msg;
+};
 
 struct xmm7xxx_data {
        GAtChat *chat;          /* AT chat */
        struct ofono_sim *sim;
        ofono_bool_t have_sim;
        ofono_bool_t sms_phonebook_added;
+       unsigned int netreg_watch;
+};
+
+/* Coex Implementation */
+enum wlan_bw {
+       WLAN_BW_UNSUPPORTED = -1,
+       WLAN_BW_20MHZ = 0,
+       WLAN_BW_40MHZ = 1,
+       WLAN_BW_80MHZ = 2,
+};
+
+struct plmn_hist {
+       unsigned short mnc;
+       unsigned short mcc;
+       unsigned long tdd;
+       unsigned long fdd;
+       unsigned char bw;
+};
+
+struct xmm7xxx_coex {
+       GAtChat *chat;
+       struct ofono_modem *modem;
+
+       DBusMessage *pending;
+       ofono_bool_t bt_active;
+       ofono_bool_t wlan_active;
+       enum wlan_bw wlan_bw;
+       char *lte_band;
+
+       ofono_bool_t pending_bt_active;
+       ofono_bool_t pending_wlan_active;
+       enum wlan_bw pending_wlan_bw;
+
+       struct coex_agent *session_agent;
+};
+
+static ofono_bool_t coex_agent_matches(struct coex_agent *agent,
+                       const char *path, const char *sender)
+{
+       return !strcmp(agent->path, path) && !strcmp(agent->bus, sender);
+}
+
+static void coex_agent_set_removed_notify(struct coex_agent *agent,
+                                       ofono_destroy_func destroy,
+                                       void *user_data)
+{
+       agent->removed_cb = destroy;
+       agent->removed_data = user_data;
+}
+
+static void coex_agent_send_noreply(struct coex_agent *agent, const char 
*method)
+{
+       DBusConnection *conn = ofono_dbus_get_connection();
+       DBusMessage *message;
+
+       message = dbus_message_new_method_call(agent->bus, agent->path,
+                                       OFONO_COEX_INTERFACE,
+                                       method);
+       if (message == NULL)
+               return;
+
+       dbus_message_set_no_reply(message, TRUE);
+
+       g_dbus_send_message(conn, message);
+}
+
+static void coex_agent_send_release(struct coex_agent *agent)
+{
+       coex_agent_send_noreply(agent, "Release");
+}
+
+static void coex_agent_free(struct coex_agent *agent)
+{
+       DBusConnection *conn = ofono_dbus_get_connection();
+
+       if (agent->disconnect_watch) {
+               coex_agent_send_release(agent);
+
+               g_dbus_remove_watch(conn, agent->disconnect_watch);
+               agent->disconnect_watch = 0;
+       }
+
+       if (agent->removed_cb)
+               agent->removed_cb(agent->removed_data);
+
+       g_free(agent->path);
+       g_free(agent->bus);
+       g_free(agent);
+}
+
+static void coex_agent_disconnect_cb(DBusConnection *conn, void *user_data)
+{
+       struct coex_agent *agent = user_data;
+
+       ofono_debug("Agent exited without calling Unregister");
+
+       agent->disconnect_watch = 0;
+
+       coex_agent_free(agent);
+}
+
+static struct coex_agent *coex_agent_new(const char *path, const char *sender,
+                               ofono_bool_t remove_on_terminate)
+{
+       struct coex_agent *agent = g_try_new0(struct coex_agent, 1);
+       DBusConnection *conn = ofono_dbus_get_connection();
+
+       DBG("");
+       if (agent == NULL)
+               return NULL;
+
+       agent->path = g_strdup(path);
+       agent->bus = g_strdup(sender);
+
+       agent->remove_on_terminate = remove_on_terminate;
+
+       agent->disconnect_watch = g_dbus_add_disconnect_watch(conn, sender,
+                                                       
coex_agent_disconnect_cb,
+                                                       agent, NULL);
+
+       return agent;
+}
+
+static int coex_agent_coex_wlan_notify(struct coex_agent *agent,
+                       const struct wl_coex_info wlan_info)
+{
+       DBusConnection *conn = ofono_dbus_get_connection();
+       DBusMessageIter wl_args, wl_dict, wl_array;
+       const dbus_int32_t *pwl_array = wlan_info.safe_vector;
+       dbus_int32_t value;
+
+       agent->msg = dbus_message_new_method_call(agent->bus, agent->path,
+                                               OFONO_COEX_AGENT_INTERFACE,
+                                               "ReceiveWiFiNotification");
+       if (agent->msg == NULL)
+               return -ENOMEM;
+
+       dbus_message_iter_init_append(agent->msg, &wl_args);
+
+       dbus_message_iter_open_container(&wl_args, DBUS_TYPE_ARRAY,
+                               DBUS_TYPE_INT32_AS_STRING, &wl_array);
+       dbus_message_iter_append_fixed_array(&wl_array, DBUS_TYPE_INT32,
+                                       &pwl_array, MAX_WL_SAFE_VECTOR);
+
+       dbus_message_iter_close_container(&wl_args, &wl_array);
+
+       dbus_message_iter_open_container(&wl_args, DBUS_TYPE_ARRAY,
+                                                       "{sv}", &wl_dict);
+
+       value = wlan_info.safe_tx_min;
+       ofono_dbus_dict_append(&wl_dict, "SafeTxMin",
+                        DBUS_TYPE_UINT32, &value);
+       value = wlan_info.safe_tx_max;
+       ofono_dbus_dict_append(&wl_dict, "SafeTxMax",
+                        DBUS_TYPE_UINT32, &value);
+       value = wlan_info.safe_rx_min;
+       ofono_dbus_dict_append(&wl_dict, "SafeRxMin",
+                        DBUS_TYPE_UINT32, &value);
+       value = wlan_info.safe_rx_max;
+       ofono_dbus_dict_append(&wl_dict, "SafeRxMax",
+                        DBUS_TYPE_UINT32, &value);
+       value = wlan_info.num_safe_vector;
+       ofono_dbus_dict_append(&wl_dict, "NumSafeVector",
+                        DBUS_TYPE_UINT32, &value);
+
+       dbus_message_iter_close_container(&wl_args, &wl_dict);
+       dbus_message_set_no_reply(agent->msg, TRUE);
+
+       if (dbus_connection_send(conn, agent->msg, NULL) == FALSE)
+               return -EIO;
+
+       dbus_message_unref(agent->msg);
+
+       return 0;
+}
+
+static int coex_agent_coex_bt_notify(struct coex_agent *agent,
+                       const struct bt_coex_info bt_info)
+{
+       DBusConnection *conn = ofono_dbus_get_connection();
+       DBusMessageIter bt_args, bt_dict, bt_array;
+       const dbus_int32_t *pbt_array = bt_info.safe_vector;
+       int len = MAX_BT_SAFE_VECTOR;
+       dbus_int32_t value;
+
+       agent->msg = dbus_message_new_method_call(agent->bus, agent->path,
+                                               OFONO_COEX_AGENT_INTERFACE,
+                                               "ReceiveBTNotification");
+
+       if (agent->msg == NULL)
+               return -ENOMEM;
+
+       pbt_array = bt_info.safe_vector;
+
+       dbus_message_iter_init_append(agent->msg, &bt_args);
+
+       dbus_message_iter_open_container(&bt_args, DBUS_TYPE_ARRAY,
+                                       DBUS_TYPE_INT32_AS_STRING, &bt_array);
+
+       dbus_message_iter_append_fixed_array(&bt_array, DBUS_TYPE_INT32,
+                                       &pbt_array, len);
+
+       dbus_message_iter_close_container(&bt_args, &bt_array);
+
+       dbus_message_iter_open_container(&bt_args,
+                                       DBUS_TYPE_ARRAY, "{sv}", &bt_dict);
+
+       value = bt_info.safe_tx_min;
+       DBG("value = %d", value);
+       ofono_dbus_dict_append(&bt_dict, "SafeTxMin",
+                       DBUS_TYPE_UINT32, &value);
+       value = bt_info.safe_tx_max;
+       DBG("value = %d", value);
+       ofono_dbus_dict_append(&bt_dict, "SafeTxMax",
+                       DBUS_TYPE_UINT32, &value);
+       value = bt_info.safe_rx_min;
+       DBG("value = %d", value);
+       ofono_dbus_dict_append(&bt_dict, "SafeRxMin",
+                       DBUS_TYPE_UINT32, &value);
+       value = bt_info.safe_rx_max;
+       DBG("value = %d", value);
+       ofono_dbus_dict_append(&bt_dict, "SafeRxMax",
+                       DBUS_TYPE_UINT32, &value);
+       value = bt_info.num_safe_vector;
+       DBG("value = %d", value);
+       ofono_dbus_dict_append(&bt_dict, "NumSafeVector",
+                       DBUS_TYPE_UINT32, &value);
+
+       dbus_message_iter_close_container(&bt_args, &bt_dict);
+
+       if (dbus_connection_send(conn, agent->msg, NULL) == FALSE)
+               return -EIO;
+
+       dbus_message_unref(agent->msg);
+
+       return 0;
+}
+
+static gboolean coex_wlan_bw_from_string(const char *str,
+                               enum wlan_bw *band)
+{
+       if (g_str_equal(str, "20")) {
+               *band = WLAN_BW_20MHZ;
+               return TRUE;
+       } else if (g_str_equal(str, "40")) {
+               *band = WLAN_BW_40MHZ;
+               return TRUE;
+       } else if (g_str_equal(str, "80")) {
+               *band = WLAN_BW_80MHZ;
+               return TRUE;
+       } else
+               *band = WLAN_BW_UNSUPPORTED;
+
+       return FALSE;
+}
+
+static const char *wlan_bw_to_string(int band)
+{
+       switch (band) {
+       case WLAN_BW_20MHZ:
+               return "20MHz";
+       case WLAN_BW_40MHZ:
+               return "40MHz";
+       case WLAN_BW_80MHZ:
+               return "80MHz";
+       case WLAN_BW_UNSUPPORTED:
+               return "UnSupported";
+       }
+
+       return "";
+}
+
+static void xmm_get_band_string(int lte_band, char *band)
+{
+       int band_lte;
+
+       band_lte = lte_band-NET_BAND_LTE_1+1;
+
+       if (lte_band >= NET_BAND_LTE_1 && lte_band <= NET_BAND_LTE_43)
+               sprintf(band, "BAND_LTE_%d", band_lte);
+       else
+               sprintf(band, "INVALID");
+}
+
+static DBusMessage *coex_get_properties(DBusConnection *conn,
+                                       DBusMessage *msg, void *data)
+{
+       struct xmm7xxx_coex *coex = data;
+       DBusMessage *reply;
+       DBusMessageIter iter;
+       DBusMessageIter dict;
+       dbus_bool_t value;
+       const char *band = NULL;
+
+       reply = dbus_message_new_method_return(msg);
+       if (reply == NULL)
+               return NULL;
+
+       dbus_message_iter_init_append(reply, &iter);
+
+       dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
+                                       OFONO_PROPERTIES_ARRAY_SIGNATURE,
+                                       &dict);
+
+       value = coex->bt_active;
+       ofono_dbus_dict_append(&dict, "BTActive",
+                               DBUS_TYPE_BOOLEAN, &value);
+
+       value = coex->wlan_active;
+       ofono_dbus_dict_append(&dict, "WLANActive",
+                               DBUS_TYPE_BOOLEAN, &value);
+
+       band = wlan_bw_to_string(coex->wlan_bw);
+       ofono_dbus_dict_append(&dict, "WLANBandwidth",
+                               DBUS_TYPE_STRING, &band);
+
+       band = coex->lte_band;
+       ofono_dbus_dict_append(&dict, "Band", DBUS_TYPE_STRING, &band);
+
+       dbus_message_iter_close_container(&iter, &dict);
+
+       return reply;
+}
+
+static void coex_set_params_cb(gboolean ok, GAtResult *result,
+                                       gpointer user_data)
+{
+       struct xmm7xxx_coex *coex = user_data;
+       DBusMessage *reply;
+       DBusConnection *conn = ofono_dbus_get_connection();
+       const char *path = ofono_modem_get_path(coex->modem);
+
+       DBG("ok %d", ok);
+
+       if (!ok) {
+               coex->pending_bt_active = coex->bt_active;
+               coex->pending_wlan_active = coex->wlan_active;
+               coex->pending_wlan_bw = coex->wlan_bw;
+               reply = __ofono_error_failed(coex->pending);
+               __ofono_dbus_pending_reply(&coex->pending, reply);
+               return;
+       }
+
+       reply = dbus_message_new_method_return(coex->pending);
+       __ofono_dbus_pending_reply(&coex->pending, reply);
+
+       if (coex->bt_active != coex->pending_bt_active) {
+               coex->bt_active = coex->pending_bt_active;
+               ofono_dbus_signal_property_changed(conn, path,
+                               OFONO_COEX_INTERFACE, "BTActive",
+                               DBUS_TYPE_BOOLEAN, &coex->bt_active);
+       }
+
+       if (coex->wlan_active != coex->pending_wlan_active) {
+               coex->wlan_active = coex->pending_wlan_active;
+               ofono_dbus_signal_property_changed(conn, path,
+                               OFONO_COEX_INTERFACE, "WLANActive",
+                               DBUS_TYPE_BOOLEAN, &coex->wlan_active);
+       }
+
+       if (coex->wlan_bw != coex->pending_wlan_bw) {
+               const char *str_band = wlan_bw_to_string(coex->wlan_bw);
+               coex->wlan_bw = coex->pending_wlan_bw;
+
+               ofono_dbus_signal_property_changed(conn, path,
+                               OFONO_COEX_INTERFACE, "WLANBandwidth",
+                               DBUS_TYPE_STRING, &str_band);
+       }
+}
+
+static void coex_set_params(struct xmm7xxx_coex *coex, ofono_bool_t bt_active,
+                                       ofono_bool_t wlan_active, int wlan_bw)
+{
+       char buf[64];
+       DBusMessage *reply;
+
+       DBG("");
+       sprintf(buf, "AT+XNRTCWS=65535,%u,%u,%u", (int)wlan_active,
+                                       wlan_bw, bt_active);
+
+       if (g_at_chat_send(coex->chat, buf, none_prefix,
+                               coex_set_params_cb, coex, NULL) > 0)
+               return;
+
+       coex->pending_bt_active = coex->bt_active;
+       coex->pending_wlan_active = coex->wlan_active;
+       coex->pending_wlan_bw = coex->wlan_bw;
+       reply = __ofono_error_failed(coex->pending);
+       __ofono_dbus_pending_reply(&coex->pending, reply);
+}
+
+static DBusMessage *coex_set_property(DBusConnection *conn,
+                               DBusMessage *msg, void *data)
+{
+       struct xmm7xxx_coex *coex = data;
+       DBusMessageIter iter;
+       DBusMessageIter var;
+       const char *property;
+       dbus_bool_t value;
+
+       if (coex->pending)
+               return __ofono_error_busy(msg);
+
+       if (!dbus_message_iter_init(msg, &iter))
+               return __ofono_error_invalid_args(msg);
+
+       if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
+               return __ofono_error_invalid_args(msg);
+
+       dbus_message_iter_get_basic(&iter, &property);
+       dbus_message_iter_next(&iter);
+
+       if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
+               return __ofono_error_invalid_args(msg);
+
+       dbus_message_iter_recurse(&iter, &var);
+
+       if (!strcmp(property, "BTActive")) {
+               if (dbus_message_iter_get_arg_type(&var) != DBUS_TYPE_BOOLEAN)
+                       return __ofono_error_invalid_args(msg);
+
+               dbus_message_iter_get_basic(&var, &value);
+
+               if (coex->bt_active == (ofono_bool_t) value)
+                       return dbus_message_new_method_return(msg);
+
+               coex->pending_bt_active = value;
+               coex->pending = dbus_message_ref(msg);
+
+               coex_set_params(coex, value, coex->wlan_active, coex->wlan_bw);
+               return NULL;
+       } else if (!strcmp(property, "WLANActive")) {
+               if (dbus_message_iter_get_arg_type(&var) != DBUS_TYPE_BOOLEAN)
+                       return __ofono_error_invalid_args(msg);
+
+               dbus_message_iter_get_basic(&var, &value);
+
+               if (coex->wlan_active == (ofono_bool_t) value)
+                       return dbus_message_new_method_return(msg);
+
+               coex->pending_wlan_active = value;
+               coex->pending = dbus_message_ref(msg);
+
+               coex_set_params(coex, coex->bt_active, value, coex->wlan_bw);
+               return NULL;
+       } else if (g_strcmp0(property, "WLANBandwidth") == 0) {
+               const char *value;
+               enum wlan_bw band;
+
+               if (dbus_message_iter_get_arg_type(&var) != DBUS_TYPE_STRING)
+                       return __ofono_error_invalid_args(msg);
+
+               dbus_message_iter_get_basic(&var, &value);
+               if (coex_wlan_bw_from_string(value, &band) == FALSE)
+                       return __ofono_error_invalid_args(msg);
+
+               if (coex->wlan_bw == band)
+                       return dbus_message_new_method_return(msg);
+
+               coex->pending_wlan_bw = band;
+               coex->pending = dbus_message_ref(msg);
+
+               coex_set_params(coex, coex->bt_active, coex->wlan_active, band);
+               return NULL;
+       } else {
+               return __ofono_error_invalid_args(msg);
+       }
+
+       return dbus_message_new_method_return(msg);
+}
+
+static void coex_default_agent_notify(gpointer user_data)
+{
+       struct xmm7xxx_coex *coex = user_data;
+
+       g_at_chat_send(coex->chat, "AT+XNRTCWS=0", none_prefix,
+                               NULL, NULL, NULL);
+
+       coex->session_agent = NULL;
+}
+
+static DBusMessage *coex_register_agent(DBusConnection *conn,
+                               DBusMessage *msg, void *data)
+{
+       struct xmm7xxx_coex *coex = data;
+       const char *agent_path;
+
+       if (coex->session_agent) {
+               DBG("Coexistence agent already registered");
+               return __ofono_error_busy(msg);
+       }
+
+       if (dbus_message_get_args(msg, NULL,
+                               DBUS_TYPE_OBJECT_PATH, &agent_path,
+                               DBUS_TYPE_INVALID) == FALSE)
+               return __ofono_error_invalid_args(msg);
+
+       if (!dbus_validate_path(agent_path, NULL))
+               return __ofono_error_invalid_format(msg);
+
+       coex->session_agent = coex_agent_new(agent_path,
+                                       dbus_message_get_sender(msg),
+                                       FALSE);
+
+       if (coex->session_agent == NULL)
+               return __ofono_error_failed(msg);
+
+       coex_agent_set_removed_notify(coex->session_agent,
+                               coex_default_agent_notify, coex);
+
+       return dbus_message_new_method_return(msg);
+}
+
+static DBusMessage *coex_unregister_agent(DBusConnection *conn,
+                                               DBusMessage *msg, void *data)
+{
+       struct xmm7xxx_coex *coex = data;
+       const char *agent_path;
+       const char *agent_bus = dbus_message_get_sender(msg);
+
+       if (dbus_message_get_args(msg, NULL,
+                                       DBUS_TYPE_OBJECT_PATH, &agent_path,
+                                       DBUS_TYPE_INVALID) == FALSE)
+               return __ofono_error_invalid_args(msg);
+
+       if (coex->session_agent == NULL)
+               return __ofono_error_failed(msg);
+
+       if (!coex_agent_matches(coex->session_agent, agent_path, agent_bus))
+               return __ofono_error_failed(msg);
+
+       coex_agent_send_release(coex->session_agent);
+       coex_agent_free(coex->session_agent);
+
+       g_at_chat_send(coex->chat, "AT+XNRTCWS=0", none_prefix,
+                               NULL, NULL, NULL);
+
+       return dbus_message_new_method_return(msg);
+}
+
+static void append_plmn_properties(struct plmn_hist *list,
+                                       DBusMessageIter *dict)
+{
+       ofono_dbus_dict_append(dict, "MobileCountryCode",
+                       DBUS_TYPE_UINT16, &list->mcc);
+       ofono_dbus_dict_append(dict, "MobileNetworkCode",
+                       DBUS_TYPE_UINT16, &list->mnc);
+       ofono_dbus_dict_append(dict, "LteBandsFDD",
+                       DBUS_TYPE_UINT32, &list->fdd);
+       ofono_dbus_dict_append(dict, "LteBandsTDD",
+                       DBUS_TYPE_UINT32, &list->tdd);
+       ofono_dbus_dict_append(dict, "ChannelBandwidth",
+                       DBUS_TYPE_UINT32, &list->bw);
+}
+
+static void append_plmn_history_struct_list(struct plmn_hist *list,
+                                       DBusMessageIter *arr)
+{
+       DBusMessageIter iter;
+       DBusMessageIter dict;
+
+       dbus_message_iter_open_container(arr, DBUS_TYPE_STRUCT, NULL, &iter);
+
+       dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
+                                       OFONO_PROPERTIES_ARRAY_SIGNATURE,
+                                       &dict);
+
+       append_plmn_properties(list, &dict);
+
+       dbus_message_iter_close_container(&iter, &dict);
+
+       dbus_message_iter_close_container(arr, &iter);
+}
+
+static void coex_get_plmn_history_cb(gboolean ok, GAtResult *result,
+                                       gpointer user_data)
+{
+       struct xmm7xxx_coex *coex = user_data;
+       struct plmn_hist *list = NULL;
+       GAtResultIter iter;
+       int list_size = 0, count;
+       DBusMessage *reply;
+       DBusMessageIter itr, arr;
+       int value;
+
+       DBG("ok %d", ok);
+
+       if (!ok) {
+               __ofono_dbus_pending_reply(&coex->pending,
+                               __ofono_error_failed(coex->pending));
+               return;
+       }
+
+       g_at_result_iter_init(&iter, result);
+
+       while (g_at_result_iter_next(&iter, "+XNVMPLMN:")) {
+               if (!list_size)
+                       list = g_new0(struct plmn_hist, ++list_size);
+               else
+                       list = g_renew(struct plmn_hist, list, ++list_size);
+
+               g_at_result_iter_next_number(&iter, &value);
+               list[list_size - 1].mcc = value;
+               g_at_result_iter_next_number(&iter, &value);
+               list[list_size - 1].mnc = value;
+               g_at_result_iter_next_number(&iter, &value);
+               list[list_size - 1].fdd = value;
+               g_at_result_iter_next_number(&iter, &value);
+               list[list_size - 1].tdd = value;
+               g_at_result_iter_next_number(&iter, &value);
+               list[list_size - 1].bw = value;
+
+               DBG("list_size = %d", list_size);
+       }
+
+       reply = dbus_message_new_method_return(coex->pending);
+       dbus_message_iter_init_append(reply, &itr);
+
+       dbus_message_iter_open_container(&itr, DBUS_TYPE_ARRAY,
+                               DBUS_STRUCT_BEGIN_CHAR_AS_STRING
+                               DBUS_TYPE_ARRAY_AS_STRING
+                               DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
+                               DBUS_TYPE_STRING_AS_STRING
+                               DBUS_TYPE_VARIANT_AS_STRING
+                               DBUS_DICT_ENTRY_END_CHAR_AS_STRING
+                               DBUS_STRUCT_END_CHAR_AS_STRING,
+                               &arr);
+
+       for (count = 0; count < list_size; count++)
+               append_plmn_history_struct_list(list, &arr);
+
+       dbus_message_iter_close_container(&itr, &arr);
+
+       reply = dbus_message_new_method_return(coex->pending);
+       __ofono_dbus_pending_reply(&coex->pending, reply);
+
+               g_free(list);
+}
+
+static DBusMessage *coex_get_plmn_history(DBusConnection *conn,
+                       DBusMessage *msg, void *data)
+{
+       struct xmm7xxx_coex *coex = data;
+
+       if (coex->pending)
+               return __ofono_error_busy(msg);
+
+       if (!g_at_chat_send(coex->chat, "AT+XNVMPLMN=2,2", xnvmplmn_prefix,
+                               coex_get_plmn_history_cb, coex, NULL))
+               return __ofono_error_failed(msg);
+
+       coex->pending = dbus_message_ref(msg);
+       return NULL;
+}
+
+static const GDBusMethodTable coex_methods[] = {
+       { GDBUS_METHOD("GetProperties",
+                       NULL, GDBUS_ARGS({ "properties", "a{sv}" }),
+                       coex_get_properties) },
+       { GDBUS_METHOD("SetProperty",
+                       GDBUS_ARGS({ "property", "s" }, { "value", "v" }),
+                       NULL, coex_set_property) },
+       { GDBUS_METHOD("RegisterAgent",
+                       GDBUS_ARGS({ "path", "o" }), NULL,
+                       coex_register_agent) },
+       { GDBUS_METHOD("UnregisterAgent",
+                       GDBUS_ARGS({ "path", "o" }), NULL,
+                       coex_unregister_agent) },
+       { GDBUS_ASYNC_METHOD("GetPlmnHistory",
+                       NULL, GDBUS_ARGS({ "plmnhistory", "a(a{sv})" }),
+                       coex_get_plmn_history) },
+       { }
 };
 
+static const GDBusSignalTable coex_signals[] = {
+       { GDBUS_SIGNAL("PropertyChanged",
+                       GDBUS_ARGS({ "name", "s" }, { "value", "v" })) },
+       { }
+};
+
+static void xmm_coex_w_notify(GAtResult *result, gpointer user_data)
+{
+       struct xmm7xxx_coex *coex = user_data;
+       GAtResultIter iter;
+       int count;
+       struct wl_coex_info wlan;
+
+       g_at_result_iter_init(&iter, result);
+
+       if (!g_at_result_iter_next(&iter, "+XNRTCWSW:"))
+               return;
+
+       g_at_result_iter_next_number(&iter, &wlan.safe_rx_min);
+       g_at_result_iter_skip_next(&iter);
+       g_at_result_iter_skip_next(&iter);
+       g_at_result_iter_next_number(&iter, &wlan.safe_rx_max);
+       g_at_result_iter_skip_next(&iter);
+       g_at_result_iter_skip_next(&iter);
+       g_at_result_iter_next_number(&iter, &wlan.safe_tx_min);
+       g_at_result_iter_skip_next(&iter);
+       g_at_result_iter_skip_next(&iter);
+       g_at_result_iter_next_number(&iter, &wlan.safe_tx_max);
+       g_at_result_iter_skip_next(&iter);
+       g_at_result_iter_skip_next(&iter);
+       g_at_result_iter_skip_next(&iter);
+       g_at_result_iter_next_number(&iter, &wlan.num_safe_vector);
+
+       for (count = 0; count < wlan.num_safe_vector; count++) {
+               g_at_result_iter_next_number(&iter, &wlan.safe_vector[count]);
+       }
+
+       DBG("WLAN notification");
+
+       if (coex->session_agent)
+               coex_agent_coex_wlan_notify(coex->session_agent, wlan);
+}
+
+static void xmm_coex_b_notify(GAtResult *result, gpointer user_data)
+{
+       struct xmm7xxx_coex *coex = user_data;
+       GAtResultIter iter;
+       struct bt_coex_info bt;
+       int count;
+
+       g_at_result_iter_init(&iter, result);
+
+       if (!g_at_result_iter_next(&iter, "+XNRTCWSB:"))
+               return;
+
+       g_at_result_iter_next_number(&iter, &bt.safe_rx_min);
+       g_at_result_iter_next_number(&iter, &bt.safe_rx_max);
+       g_at_result_iter_next_number(&iter, &bt.safe_tx_min);
+       g_at_result_iter_next_number(&iter, &bt.safe_tx_max);
+       g_at_result_iter_next_number(&iter, &bt.num_safe_vector);
+
+       for (count = 0; count < bt.num_safe_vector; count++) {
+               g_at_result_iter_next_number(&iter, &bt.safe_vector[count]);
+       }
+
+       DBG("BT notification");
+
+       if (coex->session_agent)
+               coex_agent_coex_bt_notify(coex->session_agent, bt);
+}
+
+static void xmm_lte_band_notify(GAtResult *result, gpointer user_data)
+{
+       struct xmm7xxx_coex *coex = user_data;
+       GAtResultIter iter;
+       int lte_band;
+       char band[BAND_LEN];
+       const char *path = ofono_modem_get_path(coex->modem);
+       DBusConnection *conn = ofono_dbus_get_connection();
+
+       g_at_result_iter_init(&iter, result);
+
+       if (!g_at_result_iter_next(&iter, "+XCCINFO:"))
+               return;
+
+       g_at_result_iter_skip_next(&iter);
+       g_at_result_iter_skip_next(&iter);
+       g_at_result_iter_skip_next(&iter);
+       g_at_result_iter_skip_next(&iter);
+
+       if (!g_at_result_iter_next_number(&iter, &lte_band))
+               return;
+
+       xmm_get_band_string(lte_band, band);
+       DBG("band %s", band);
+
+       if (!strcmp(band, coex->lte_band))
+               return;
+
+       g_free(coex->lte_band);
+       coex->lte_band = g_strdup(band);
+
+       if (coex->lte_band == NULL)
+               return;
+
+       ofono_dbus_signal_property_changed(conn, path,
+                               OFONO_COEX_INTERFACE,
+                               "Band", DBUS_TYPE_STRING, &coex->lte_band);
+}
+
+static void coex_cleanup(void *data)
+{
+       struct xmm7xxx_coex *coex = data;
+
+       if (coex->pending)
+               __ofono_dbus_pending_reply(&coex->pending,
+                               __ofono_error_canceled(coex->pending));
+
+       if (coex->session_agent) {
+               coex_agent_free(coex->session_agent);
+
+               g_at_chat_send(coex->chat, "AT+XNRTCWS=0", none_prefix,
+                               NULL, NULL, NULL);
+       }
+
+       g_free(coex->lte_band);
+       g_free(coex);
+}
+
+static int xmm_coex_enable(struct ofono_modem *modem, void *data)
+{
+       struct xmm7xxx_coex *coex;
+       DBusConnection *conn = ofono_dbus_get_connection();
+       const char *path = ofono_modem_get_path(modem);
+       coex = g_new0(struct xmm7xxx_coex, 1);
+
+       DBG("coex enable");
+
+       coex->chat = data;
+       coex->modem = modem;
+       coex->bt_active = 0;
+       coex->wlan_active = 0;
+       coex->wlan_bw = WLAN_BW_20MHZ;
+       coex->lte_band = g_strdup("INVALID");
+       coex->session_agent = NULL;
+
+       if (!g_at_chat_send(coex->chat, "AT+XCCINFO=1", none_prefix,
+                               NULL, NULL, NULL))
+               goto out;
+
+       if (!g_at_chat_send(coex->chat, "AT+XNRTCWS=7", none_prefix,
+                               NULL, NULL, NULL))
+               goto out;
+
+       if (!g_dbus_register_interface(conn, path, OFONO_COEX_INTERFACE,
+                                       coex_methods,
+                                       coex_signals,
+                                       NULL, coex, coex_cleanup)) {
+               ofono_error("Could not register %s interface under %s",
+                                       OFONO_COEX_INTERFACE, path);
+               goto out;
+       }
+
+       ofono_modem_add_interface(modem, OFONO_COEX_INTERFACE);
+
+       g_at_chat_register(coex->chat, "+XNRTCWSW:", xmm_coex_w_notify,
+                                       FALSE, coex, NULL);
+       g_at_chat_register(coex->chat, "+XNRTCWSB:", xmm_coex_b_notify,
+                                       FALSE, coex, NULL);
+       g_at_chat_register(coex->chat, "+XCCINFO:", xmm_lte_band_notify,
+                                       FALSE, coex, NULL);
+       return 0;
+
+out:
+       g_free(coex->lte_band);
+       g_free(coex);
+       return -EIO;
+}
+
+/* Coex Implementation Ends*/
+
 static void xmm7xxx_debug(const char *str, void *user_data)
 {
        const char *prefix = user_data;
@@ -242,6 +1137,29 @@ static void cfun_enable_cb(gboolean ok, GAtResult 
*result, gpointer user_data)
                        xsimstate_query_cb, modem, NULL);
 }
 
+static void netreg_watch(struct ofono_atom *atom,
+                               enum ofono_atom_watch_condition cond,
+                               void *data)
+{
+       struct ofono_modem *modem = data;
+       struct xmm7xxx_data *modem_data = ofono_modem_get_data(modem);
+       DBusConnection *conn = ofono_dbus_get_connection();
+       const char *path = ofono_modem_get_path(modem);
+
+       if (cond == OFONO_ATOM_WATCH_CONDITION_UNREGISTERED) {
+               if (g_dbus_unregister_interface(conn, path,
+                                               OFONO_COEX_INTERFACE))
+                       ofono_modem_remove_interface(modem,
+                                                       OFONO_COEX_INTERFACE);
+               return;
+       }
+
+       if (cond == OFONO_ATOM_WATCH_CONDITION_REGISTERED) {
+               xmm_coex_enable(modem, modem_data->chat);
+               return;
+       }
+}
+
 static int xmm7xxx_enable(struct ofono_modem *modem)
 {
        struct xmm7xxx_data *data = ofono_modem_get_data(modem);
@@ -263,6 +1181,10 @@ static int xmm7xxx_enable(struct ofono_modem *modem)
        g_at_chat_send(data->chat, "AT+CFUN=4", none_prefix,
                                cfun_enable_cb, modem, NULL);
 
+       data->netreg_watch = __ofono_modem_add_atom_watch(modem,
+                                       OFONO_ATOM_TYPE_NETREG,
+                                       netreg_watch, modem, NULL);
+
        return -EINPROGRESS;
 }
 
@@ -293,6 +1215,11 @@ static int xmm7xxx_disable(struct ofono_modem *modem)
        g_at_chat_send(data->chat, "AT+CFUN=0", none_prefix,
                                cfun_disable_cb, modem, NULL);
 
+       if (data->netreg_watch) {
+               __ofono_modem_remove_atom_watch(modem, data->netreg_watch);
+               data->netreg_watch = 0;
+       }
+
        return -EINPROGRESS;
 }
 
-- 
1.9.1

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