[pulseaudio-discuss] [PATCH v5 2/4] bluetooth: separate HSP and HFP

James Bottomley James.Bottomley at HansenPartnership.com
Thu Sep 21 19:27:19 UTC 2017


When all headsets supported both HSP and HFP, life was good and we
only needed to implement HSP in the native backend.  Unfortunately
some headsets have started supporting HFP only.  Unfortuantely, we
can't simply switch to HFP only because that might break older HSP
only headsets meaning we need to support both HSP and HFP separately.

This patch separates them from a joint profile to being two separate
ones.  The older one retains the headset_head_unit name, meaning any
saved parameters will still select this (keeping us backward
compatible).  It also introduces a new headset_handsfree.

For headsets that support both HSP and HFP, the two profiles will
become separately visible and selectable.  This will only matter once
we start adding features to HFP that HSP can't support (like wideband
audio).

Signed-off-by: <James.Bottomley at HansenPartnership.com>

---
v5:

- rename option to enable_native_hfp_hf
- don't call profile_done for HFP_HF unless it was initialised

v3:

- Update for PA 11.0

v2:

- fold in review feedback
- add global disable option for not registering HFP

v3:

- change parameter to enable_profile_hfp
- update device_supports_profile to be aware of hfp/hsp exclusivity
- change parameter to enable_profile_hfp_hf
---
 src/modules/bluetooth/backend-native.c          | 17 ++++++-
 src/modules/bluetooth/bluez5-util.c             | 31 +++++++++++--
 src/modules/bluetooth/bluez5-util.h             |  4 +-
 src/modules/bluetooth/module-bluetooth-policy.c |  3 +-
 src/modules/bluetooth/module-bluez5-device.c    | 60 +++++++++++++++++++++----
 src/modules/bluetooth/module-bluez5-discover.c  |  6 ++-
 6 files changed, 106 insertions(+), 15 deletions(-)

diff --git a/src/modules/bluetooth/backend-native.c b/src/modules/bluetooth/backend-native.c
index f2009bfd..9ec9244b 100644
--- a/src/modules/bluetooth/backend-native.c
+++ b/src/modules/bluetooth/backend-native.c
@@ -62,6 +62,7 @@ struct transport_data {
 #define BLUEZ_PROFILE_INTERFACE BLUEZ_SERVICE ".Profile1"
 
 #define HSP_AG_PROFILE "/Profile/HSPAGProfile"
+#define HFP_AG_PROFILE "/Profile/HFPAGProfile"
 #define HSP_HS_PROFILE "/Profile/HSPHSProfile"
 
 /* RFCOMM channel for HSP headset role
@@ -512,6 +513,8 @@ static DBusMessage *profile_new_connection(DBusConnection *conn, DBusMessage *m,
         p = PA_BLUETOOTH_PROFILE_HSP_HS;
     } else if (pa_streq(handler, HSP_HS_PROFILE)) {
         p = PA_BLUETOOTH_PROFILE_HFP_AG;
+    } else if (pa_streq(handler, HFP_AG_PROFILE)) {
+        p = PA_BLUETOOTH_PROFILE_HFP_HF;
     } else {
         pa_log_error("Invalid handler");
         goto fail;
@@ -589,7 +592,8 @@ static DBusHandlerResult profile_handler(DBusConnection *c, DBusMessage *m, void
 
     pa_log_debug("dbus: path=%s, interface=%s, member=%s", path, interface, member);
 
-    if (!pa_streq(path, HSP_AG_PROFILE) && !pa_streq(path, HSP_HS_PROFILE))
+    if (!pa_streq(path, HSP_AG_PROFILE) && !pa_streq(path, HSP_HS_PROFILE)
+        && !pa_streq(path, HFP_AG_PROFILE))
         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 
     if (dbus_message_is_method_call(m, "org.freedesktop.DBus.Introspectable", "Introspect")) {
@@ -634,6 +638,10 @@ static void profile_init(pa_bluetooth_backend *b, pa_bluetooth_profile_t profile
             object_name = HSP_HS_PROFILE;
             uuid = PA_BLUETOOTH_UUID_HSP_HS;
             break;
+        case PA_BLUETOOTH_PROFILE_HFP_HF:
+            object_name = HFP_AG_PROFILE;
+            uuid = PA_BLUETOOTH_UUID_HFP_AG;
+            break;
         default:
             pa_assert_not_reached();
             break;
@@ -653,6 +661,9 @@ static void profile_done(pa_bluetooth_backend *b, pa_bluetooth_profile_t profile
         case PA_BLUETOOTH_PROFILE_HFP_AG:
             dbus_connection_unregister_object_path(pa_dbus_connection_get(b->connection), HSP_HS_PROFILE);
             break;
+        case PA_BLUETOOTH_PROFILE_HFP_HF:
+            dbus_connection_unregister_object_path(pa_dbus_connection_get(b->connection), HFP_AG_PROFILE);
+            break;
         default:
             pa_assert_not_reached();
             break;
@@ -695,6 +706,8 @@ pa_bluetooth_backend *pa_bluetooth_native_backend_new(pa_core *c, pa_bluetooth_d
     if (enable_hs_role)
        profile_init(backend, PA_BLUETOOTH_PROFILE_HFP_AG);
     profile_init(backend, PA_BLUETOOTH_PROFILE_HSP_HS);
+    if (pa_bluetooth_discovery_get_enable_native_hfp_hf(y))
+        profile_init(backend, PA_BLUETOOTH_PROFILE_HFP_HF);
 
     return backend;
 }
@@ -707,6 +720,8 @@ void pa_bluetooth_native_backend_free(pa_bluetooth_backend *backend) {
     if (backend->enable_hs_role)
        profile_done(backend, PA_BLUETOOTH_PROFILE_HFP_AG);
     profile_done(backend, PA_BLUETOOTH_PROFILE_HSP_HS);
+    if (pa_bluetooth_discovery_get_enable_native_hfp_hf(backend->discovery))
+      profile_done(backend, PA_BLUETOOTH_PROFILE_HFP_HF);
 
     pa_dbus_connection_unref(backend->connection);
 
diff --git a/src/modules/bluetooth/bluez5-util.c b/src/modules/bluetooth/bluez5-util.c
index 4470f2ef..80a025d5 100644
--- a/src/modules/bluetooth/bluez5-util.c
+++ b/src/modules/bluetooth/bluez5-util.c
@@ -92,6 +92,7 @@ struct pa_bluetooth_discovery {
     int headset_backend;
     pa_bluetooth_backend *ofono_backend, *native_backend;
     PA_LLIST_HEAD(pa_dbus_pending, pending);
+    bool enable_native_hfp_hf;
 };
 
 static pa_dbus_pending* send_and_add_to_pending(pa_bluetooth_discovery *y, DBusMessage *m,
@@ -169,14 +170,27 @@ static const char *transport_state_to_string(pa_bluetooth_transport_state_t stat
 }
 
 static bool device_supports_profile(pa_bluetooth_device *device, pa_bluetooth_profile_t profile) {
+    bool show_hfp, show_hsp, enable_native_hfp_hf;
+
+    enable_native_hfp_hf = pa_bluetooth_discovery_get_enable_native_hfp_hf(device->discovery);
+
+    if (enable_native_hfp_hf) {
+        show_hfp = pa_hashmap_get(device->uuids, PA_BLUETOOTH_UUID_HFP_HF);
+        show_hsp = !show_hfp;
+    } else {
+        show_hfp = false;
+        show_hsp = true;
+    }
+
     switch (profile) {
         case PA_BLUETOOTH_PROFILE_A2DP_SINK:
             return !!pa_hashmap_get(device->uuids, PA_BLUETOOTH_UUID_A2DP_SINK);
         case PA_BLUETOOTH_PROFILE_A2DP_SOURCE:
             return !!pa_hashmap_get(device->uuids, PA_BLUETOOTH_UUID_A2DP_SOURCE);
         case PA_BLUETOOTH_PROFILE_HSP_HS:
-            return !!pa_hashmap_get(device->uuids, PA_BLUETOOTH_UUID_HSP_HS)
-                || !!pa_hashmap_get(device->uuids, PA_BLUETOOTH_UUID_HFP_HF);
+            return show_hsp && !!pa_hashmap_get(device->uuids, PA_BLUETOOTH_UUID_HSP_HS);
+        case PA_BLUETOOTH_PROFILE_HFP_HF:
+            return show_hfp && !!pa_hashmap_get(device->uuids, PA_BLUETOOTH_UUID_HFP_HF);
         case PA_BLUETOOTH_PROFILE_HFP_AG:
             return !!pa_hashmap_get(device->uuids, PA_BLUETOOTH_UUID_HSP_AG)
                 || !!pa_hashmap_get(device->uuids, PA_BLUETOOTH_UUID_HFP_AG);
@@ -536,6 +550,14 @@ pa_bluetooth_device* pa_bluetooth_discovery_get_device_by_path(pa_bluetooth_disc
     return NULL;
 }
 
+bool pa_bluetooth_discovery_get_enable_native_hfp_hf(pa_bluetooth_discovery *y)
+{
+    pa_assert(y);
+    pa_assert(PA_REFCNT_VALUE(y) > 0);
+
+    return y->enable_native_hfp_hf;
+}
+
 pa_bluetooth_device* pa_bluetooth_discovery_get_device_by_address(pa_bluetooth_discovery *y, const char *remote, const char *local) {
     pa_bluetooth_device *d;
     void *state = NULL;
@@ -1306,6 +1328,8 @@ const char *pa_bluetooth_profile_to_string(pa_bluetooth_profile_t profile) {
             return "a2dp_source";
         case PA_BLUETOOTH_PROFILE_HSP_HS:
             return "headset_head_unit";
+        case PA_BLUETOOTH_PROFILE_HFP_HF:
+            return "headset_handsfree";
         case PA_BLUETOOTH_PROFILE_HFP_AG:
             return "headset_audio_gateway";
         case PA_BLUETOOTH_PROFILE_OFF:
@@ -1727,7 +1751,7 @@ static void endpoint_done(pa_bluetooth_discovery *y, pa_bluetooth_profile_t prof
     }
 }
 
-pa_bluetooth_discovery* pa_bluetooth_discovery_get(pa_core *c, int headset_backend) {
+pa_bluetooth_discovery* pa_bluetooth_discovery_get(pa_core *c, int headset_backend, bool enable_native_hfp_hf) {
     pa_bluetooth_discovery *y;
     DBusError err;
     DBusConnection *conn;
@@ -1737,6 +1761,7 @@ pa_bluetooth_discovery* pa_bluetooth_discovery_get(pa_core *c, int headset_backe
     PA_REFCNT_INIT(y);
     y->core = c;
     y->headset_backend = headset_backend;
+    y->enable_native_hfp_hf = enable_native_hfp_hf;
     y->adapters = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL,
                                       (pa_free_cb_t) adapter_free);
     y->devices = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL,
diff --git a/src/modules/bluetooth/bluez5-util.h b/src/modules/bluetooth/bluez5-util.h
index 84c0c3f1..b077ca2c 100644
--- a/src/modules/bluetooth/bluez5-util.h
+++ b/src/modules/bluetooth/bluez5-util.h
@@ -47,6 +47,7 @@ typedef enum profile {
     PA_BLUETOOTH_PROFILE_A2DP_SINK,
     PA_BLUETOOTH_PROFILE_A2DP_SOURCE,
     PA_BLUETOOTH_PROFILE_HSP_HS,
+    PA_BLUETOOTH_PROFILE_HFP_HF,
     PA_BLUETOOTH_PROFILE_HFP_AG,
     PA_BLUETOOTH_PROFILE_OFF
 } pa_bluetooth_profile_t;
@@ -161,8 +162,9 @@ const char *pa_bluetooth_profile_to_string(pa_bluetooth_profile_t profile);
 #define HEADSET_BACKEND_NATIVE 1
 #define HEADSET_BACKEND_AUTO 2
 
-pa_bluetooth_discovery* pa_bluetooth_discovery_get(pa_core *core, int headset_backend);
+pa_bluetooth_discovery* pa_bluetooth_discovery_get(pa_core *core, int headset_backend, bool default_profile_hfp);
 pa_bluetooth_discovery* pa_bluetooth_discovery_ref(pa_bluetooth_discovery *y);
 void pa_bluetooth_discovery_unref(pa_bluetooth_discovery *y);
 void pa_bluetooth_discovery_set_ofono_running(pa_bluetooth_discovery *y, bool is_running);
+bool pa_bluetooth_discovery_get_enable_native_hfp_hf(pa_bluetooth_discovery *y);
 #endif
diff --git a/src/modules/bluetooth/module-bluetooth-policy.c b/src/modules/bluetooth/module-bluetooth-policy.c
index 316b9a82..b17c5d39 100644
--- a/src/modules/bluetooth/module-bluetooth-policy.c
+++ b/src/modules/bluetooth/module-bluetooth-policy.c
@@ -365,7 +365,8 @@ static pa_hook_result_t profile_available_hook_callback(pa_core *c, pa_card_prof
     /* Do not automatically switch profiles for headsets, just in case */
     /* TODO: remove a2dp and hsp when we remove BlueZ 4 support */
     if (pa_streq(profile->name, "hsp") || pa_streq(profile->name, "a2dp") || pa_streq(profile->name, "a2dp_sink") ||
-        pa_streq(profile->name, "headset_head_unit"))
+        pa_streq(profile->name, "headset_head_unit") ||
+        pa_streq(profile->name, "headset_handsfree"))
         return PA_HOOK_OK;
 
     is_active_profile = card->active_profile == profile;
diff --git a/src/modules/bluetooth/module-bluez5-device.c b/src/modules/bluetooth/module-bluez5-device.c
index d076fbad..d37ce9ce 100644
--- a/src/modules/bluetooth/module-bluez5-device.c
+++ b/src/modules/bluetooth/module-bluez5-device.c
@@ -258,6 +258,7 @@ static int sco_process_render(struct userdata *u) {
 
     pa_assert(u);
     pa_assert(u->profile == PA_BLUETOOTH_PROFILE_HSP_HS ||
+                u->profile == PA_BLUETOOTH_PROFILE_HFP_HF ||
                 u->profile == PA_BLUETOOTH_PROFILE_HFP_AG);
     pa_assert(u->sink);
 
@@ -318,6 +319,7 @@ static int sco_process_push(struct userdata *u) {
 
     pa_assert(u);
     pa_assert(u->profile == PA_BLUETOOTH_PROFILE_HSP_HS ||
+                u->profile == PA_BLUETOOTH_PROFILE_HFP_HF||
                 u->profile == PA_BLUETOOTH_PROFILE_HFP_AG);
     pa_assert(u->source);
     pa_assert(u->read_smoother);
@@ -784,7 +786,9 @@ static void transport_release(struct userdata *u) {
 
 /* Run from I/O thread */
 static void transport_config_mtu(struct userdata *u) {
-    if (u->profile == PA_BLUETOOTH_PROFILE_HSP_HS || u->profile == PA_BLUETOOTH_PROFILE_HFP_AG) {
+    if (u->profile == PA_BLUETOOTH_PROFILE_HSP_HS
+        || u->profile == PA_BLUETOOTH_PROFILE_HFP_HF
+        || u->profile == PA_BLUETOOTH_PROFILE_HFP_AG) {
         u->read_block_size = u->read_link_mtu;
         u->write_block_size = u->write_link_mtu;
 
@@ -1004,7 +1008,8 @@ static int add_source(struct userdata *u) {
     data.namereg_fail = false;
     pa_proplist_sets(data.proplist, "bluetooth.protocol", pa_bluetooth_profile_to_string(u->profile));
     pa_source_new_data_set_sample_spec(&data, &u->sample_spec);
-    if (u->profile == PA_BLUETOOTH_PROFILE_HSP_HS)
+    if (u->profile == PA_BLUETOOTH_PROFILE_HSP_HS
+        || u->profile == PA_BLUETOOTH_PROFILE_HFP_HF)
         pa_proplist_sets(data.proplist, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
 
     connect_ports(u, &data, PA_DIRECTION_INPUT);
@@ -1016,6 +1021,7 @@ static int add_source(struct userdata *u) {
                 data.suspend_cause = PA_SUSPEND_USER;
                 break;
             case PA_BLUETOOTH_PROFILE_HSP_HS:
+            case PA_BLUETOOTH_PROFILE_HFP_HF:
                 /* u->stream_fd contains the error returned by the last transport_acquire()
                  * EAGAIN means we are waiting for a NewConnection signal */
                 if (u->stream_fd == -EAGAIN)
@@ -1039,7 +1045,9 @@ static int add_source(struct userdata *u) {
     u->source->userdata = u;
     u->source->parent.process_msg = source_process_msg;
 
-    if (u->profile == PA_BLUETOOTH_PROFILE_HSP_HS || u->profile == PA_BLUETOOTH_PROFILE_HFP_AG) {
+    if (u->profile == PA_BLUETOOTH_PROFILE_HSP_HS
+        || u->profile == PA_BLUETOOTH_PROFILE_HFP_AG
+        || u->profile == PA_BLUETOOTH_PROFILE_HFP_HF) {
         pa_source_set_set_volume_callback(u->source, source_set_volume_cb);
         u->source->n_volume_steps = 16;
     }
@@ -1174,7 +1182,8 @@ static int add_sink(struct userdata *u) {
     data.namereg_fail = false;
     pa_proplist_sets(data.proplist, "bluetooth.protocol", pa_bluetooth_profile_to_string(u->profile));
     pa_sink_new_data_set_sample_spec(&data, &u->sample_spec);
-    if (u->profile == PA_BLUETOOTH_PROFILE_HSP_HS)
+    if (u->profile == PA_BLUETOOTH_PROFILE_HSP_HS
+        || u->profile == PA_BLUETOOTH_PROFILE_HFP_HF)
         pa_proplist_sets(data.proplist, PA_PROP_DEVICE_INTENDED_ROLES, "phone");
 
     connect_ports(u, &data, PA_DIRECTION_OUTPUT);
@@ -1185,6 +1194,7 @@ static int add_sink(struct userdata *u) {
                 data.suspend_cause = PA_SUSPEND_USER;
                 break;
             case PA_BLUETOOTH_PROFILE_HSP_HS:
+            case PA_BLUETOOTH_PROFILE_HFP_HF:
                 /* u->stream_fd contains the error returned by the last transport_acquire()
                  * EAGAIN means we are waiting for a NewConnection signal */
                 if (u->stream_fd == -EAGAIN)
@@ -1210,7 +1220,9 @@ static int add_sink(struct userdata *u) {
     u->sink->userdata = u;
     u->sink->parent.process_msg = sink_process_msg;
 
-    if (u->profile == PA_BLUETOOTH_PROFILE_HSP_HS || u->profile == PA_BLUETOOTH_PROFILE_HFP_AG) {
+    if (u->profile == PA_BLUETOOTH_PROFILE_HSP_HS
+        || u->profile == PA_BLUETOOTH_PROFILE_HFP_AG
+        || u->profile == PA_BLUETOOTH_PROFILE_HFP_HF) {
         pa_sink_set_set_volume_callback(u->sink, sink_set_volume_cb);
         u->sink->n_volume_steps = 16;
     }
@@ -1219,7 +1231,9 @@ static int add_sink(struct userdata *u) {
 
 /* Run from main thread */
 static void transport_config(struct userdata *u) {
-    if (u->profile == PA_BLUETOOTH_PROFILE_HSP_HS || u->profile == PA_BLUETOOTH_PROFILE_HFP_AG) {
+    if (u->profile == PA_BLUETOOTH_PROFILE_HSP_HS
+        || u->profile == PA_BLUETOOTH_PROFILE_HFP_HF
+        || u->profile == PA_BLUETOOTH_PROFILE_HFP_AG) {
         u->sample_spec.format = PA_SAMPLE_S16LE;
         u->sample_spec.channels = 1;
         u->sample_spec.rate = 8000;
@@ -1370,6 +1384,7 @@ static pa_direction_t get_profile_direction(pa_bluetooth_profile_t p) {
         [PA_BLUETOOTH_PROFILE_A2DP_SINK] = PA_DIRECTION_OUTPUT,
         [PA_BLUETOOTH_PROFILE_A2DP_SOURCE] = PA_DIRECTION_INPUT,
         [PA_BLUETOOTH_PROFILE_HSP_HS] = PA_DIRECTION_INPUT | PA_DIRECTION_OUTPUT,
+        [PA_BLUETOOTH_PROFILE_HFP_HF] = PA_DIRECTION_INPUT | PA_DIRECTION_OUTPUT,
         [PA_BLUETOOTH_PROFILE_HFP_AG] = PA_DIRECTION_INPUT | PA_DIRECTION_OUTPUT,
         [PA_BLUETOOTH_PROFILE_OFF] = 0
     };
@@ -1874,7 +1889,20 @@ static pa_card_profile *create_card_profile(struct userdata *u, pa_bluetooth_pro
         break;
 
     case PA_BLUETOOTH_PROFILE_HSP_HS:
-        cp = pa_card_profile_new(name, _("Headset Head Unit (HSP/HFP)"), sizeof(pa_bluetooth_profile_t));
+        cp = pa_card_profile_new(name, _("Headset Head Unit (HSP)"), sizeof(pa_bluetooth_profile_t));
+        cp->priority = 20;
+        cp->n_sinks = 1;
+        cp->n_sources = 1;
+        cp->max_sink_channels = 1;
+        cp->max_source_channels = 1;
+        pa_hashmap_put(input_port->profiles, cp->name, cp);
+        pa_hashmap_put(output_port->profiles, cp->name, cp);
+
+        p = PA_CARD_PROFILE_DATA(cp);
+        break;
+
+    case PA_BLUETOOTH_PROFILE_HFP_HF:
+         cp = pa_card_profile_new(name, _("Headset Handsfree (HFP)"), sizeof(pa_bluetooth_profile_t));
         cp->priority = 20;
         cp->n_sinks = 1;
         cp->n_sources = 1;
@@ -1960,8 +1988,10 @@ static int uuid_to_profile(const char *uuid, pa_bluetooth_profile_t *_r) {
         *_r = PA_BLUETOOTH_PROFILE_A2DP_SINK;
     else if (pa_streq(uuid, PA_BLUETOOTH_UUID_A2DP_SOURCE))
         *_r = PA_BLUETOOTH_PROFILE_A2DP_SOURCE;
-    else if (pa_streq(uuid, PA_BLUETOOTH_UUID_HSP_HS) || pa_streq(uuid, PA_BLUETOOTH_UUID_HFP_HF))
+    else if (pa_streq(uuid, PA_BLUETOOTH_UUID_HSP_HS))
         *_r = PA_BLUETOOTH_PROFILE_HSP_HS;
+    else if (pa_streq(uuid, PA_BLUETOOTH_UUID_HFP_HF))
+        *_r = PA_BLUETOOTH_PROFILE_HFP_HF;
     else if (pa_streq(uuid, PA_BLUETOOTH_UUID_HSP_AG) || pa_streq(uuid, PA_BLUETOOTH_UUID_HFP_AG))
         *_r = PA_BLUETOOTH_PROFILE_HFP_AG;
     else
@@ -1980,6 +2010,7 @@ static int add_card(struct userdata *u) {
     pa_bluetooth_profile_t *p;
     const char *uuid;
     void *state;
+    bool enable_native_hfp_hf, has_both;
 
     pa_assert(u);
     pa_assert(u->device);
@@ -2010,9 +2041,22 @@ static int add_card(struct userdata *u) {
 
     create_card_ports(u, data.ports);
 
+    enable_native_hfp_hf = pa_bluetooth_discovery_get_enable_native_hfp_hf(u->discovery);
+
+    has_both = enable_native_hfp_hf && pa_hashmap_get(d->uuids, PA_BLUETOOTH_UUID_HFP_HF) && pa_hashmap_get(d->uuids, PA_BLUETOOTH_UUID_HSP_HS);
     PA_HASHMAP_FOREACH(uuid, d->uuids, state) {
         pa_bluetooth_profile_t profile;
 
+        if (!enable_native_hfp_hf && pa_streq(uuid, PA_BLUETOOTH_UUID_HFP_HF)) {
+            pa_log_info("device supports HFP but disabling profile as requested");
+            continue;
+        }
+
+        if (has_both && pa_streq(uuid, PA_BLUETOOTH_UUID_HSP_HS)) {
+            pa_log_info("device support HSP and HFP, selecting HFP only");
+            continue;
+        }
+
         if (uuid_to_profile(uuid, &profile) < 0)
             continue;
 
diff --git a/src/modules/bluetooth/module-bluez5-discover.c b/src/modules/bluetooth/module-bluez5-discover.c
index c535ead4..bfb361ae 100644
--- a/src/modules/bluetooth/module-bluez5-discover.c
+++ b/src/modules/bluetooth/module-bluez5-discover.c
@@ -104,6 +104,7 @@ int pa__init(pa_module *m) {
     const char *headset_str;
     int headset_backend;
     bool autodetect_mtu;
+    bool enable_native_hfp_hf = true;
 
     pa_assert(m);
 
@@ -127,6 +128,9 @@ int pa__init(pa_module *m) {
     autodetect_mtu = false;
     if (pa_modargs_get_value_boolean(ma, "autodetect_mtu", &autodetect_mtu) < 0) {
         pa_log("Invalid boolean value for autodetect_mtu parameter");
+    }
+    if (pa_modargs_get_value_boolean(ma, "enable_native_hfp_hf", &enable_native_hfp_hf) < 0) {
+        pa_log("enable_native_hfp_hf must be true or false");
         goto fail;
     }
 
@@ -136,7 +140,7 @@ int pa__init(pa_module *m) {
     u->autodetect_mtu = autodetect_mtu;
     u->loaded_device_paths = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
 
-    if (!(u->discovery = pa_bluetooth_discovery_get(u->core, headset_backend)))
+    if (!(u->discovery = pa_bluetooth_discovery_get(u->core, headset_backend, enable_native_hfp_hf)))
         goto fail;
 
     u->device_connection_changed_slot =
-- 
2.12.3


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