bluez 5: Build both headset backends, if available

Enable both ofono and native backends to be built into the same
libbluez5-util. Never build the null backend.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>

6 files changed, 69 insertions, 29 deletions

diff --git a/configure.ac b/configure.ac
index 6b67dac34..e91e99014 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1035,18 +1035,22 @@ AM_CONDITIONAL([HAVE_BLUEZ], [test "x$HAVE_BLUEZ" = x1])
 
 ## Bluetooth Headset profiles backend ##
 
-AC_ARG_WITH(bluetooth_headset_backend,
-    AS_HELP_STRING([--with-bluetooth-headset-backend=<ofono|native|null>],[Backend for Bluetooth headset profiles (native)]))
-if test -z "$with_bluetooth_headset_backend" ; then
-    BLUETOOTH_HEADSET_BACKEND=native
-else
-    BLUETOOTH_HEADSET_BACKEND=$with_bluetooth_headset_backend
-fi
-
-AS_IF([test "x$BLUETOOTH_HEADSET_BACKEND" != "xofono" && test "x$BLUETOOTH_HEADSET_BACKEND" != "xnull" && test "x$BLUETOOTH_HEADSET_BACKEND" != "xnative"],
-    [AC_MSG_ERROR([*** Invalid Bluetooth Headset backend])])
-
-AC_SUBST(BLUETOOTH_HEADSET_BACKEND)
+AC_ARG_ENABLE([bluez5-ofono-headset],
+    AS_HELP_STRING([--disable-bluez5-ofono-headset],[Disable optional ofono headset backend support (Bluez 5)]))
+AS_IF([test "x$HAVE_BLUEZ_5" = "x1" && test "x$enable_bluez5_ofono_headset" != "xno"], HAVE_BLUEZ_5_OFONO_HEADSET=1)
+AC_SUBST(HAVE_BLUEZ_5_OFONO_HEADSET)
+AM_CONDITIONAL([HAVE_BLUEZ_5_OFONO_HEADSET], [test "x$HAVE_BLUEZ_5_OFONO_HEADSET" = x1])
+AS_IF([test "x$HAVE_BLUEZ_5_OFONO_HEADSET" = "x1"], AC_DEFINE([HAVE_BLUEZ_5_OFONO_HEADSET], 1, [Bluez 5 ofono headset backend enabled]))
+
+AC_ARG_ENABLE([bluez5-native-headset],
+    AS_HELP_STRING([--disable-bluez5-native-headset],[Disable optional native headset backend support (Bluez 5)]))
+AS_IF([test "x$HAVE_BLUEZ_5" = "x1" && test "x$enable_bluez5_native_headset" != "xno"], HAVE_BLUEZ_5_NATIVE_HEADSET=1)
+AS_IF([test "x$HAVE_BLUEZ_5_NATIVE_HEADSET" = "x1"], [PKG_CHECK_MODULES(BLUEZ, [ bluez >= 4.101 ], [],
+    [AC_MSG_ERROR([*** Bluez library not found (required by native headset backend)])])])
+
+AC_SUBST(HAVE_BLUEZ_5_NATIVE_HEADSET)
+AM_CONDITIONAL([HAVE_BLUEZ_5_NATIVE_HEADSET], [test "x$HAVE_BLUEZ_5_NATIVE_HEADSET" = x1])
+AS_IF([test "x$HAVE_BLUEZ_5_NATIVE_HEADSET" = "x1"], AC_DEFINE([HAVE_BLUEZ_5_NATIVE_HEADSET], 1, [Bluez 5 native headset backend enabled]))
 
 #### UDEV support (optional) ####
 
@@ -1509,6 +1513,8 @@ AS_IF([test "x$HAVE_SYSTEMD_LOGIN" = "x1"], ENABLE_SYSTEMD_LOGIN=yes, ENABLE_SYS
 AS_IF([test "x$HAVE_SYSTEMD_JOURNAL" = "x1"], ENABLE_SYSTEMD_JOURNAL=yes, ENABLE_SYSTEMD_JOURNAL=no)
 AS_IF([test "x$HAVE_BLUEZ_4" = "x1"], ENABLE_BLUEZ_4=yes, ENABLE_BLUEZ_4=no)
 AS_IF([test "x$HAVE_BLUEZ_5" = "x1"], ENABLE_BLUEZ_5=yes, ENABLE_BLUEZ_5=no)
+AS_IF([test "x$HAVE_BLUEZ_5_OFONO_HEADSET" = "x1"], ENABLE_BLUEZ_5_OFONO_HEADSET=yes, ENABLE_BLUEZ_5_OFONO_HEADSET=no)
+AS_IF([test "x$HAVE_BLUEZ_5_NATIVE_HEADSET" = "x1"], ENABLE_BLUEZ_5_NATIVE_HEADSET=yes, ENABLE_BLUEZ_5_NATIVE_HEADSET=no)
 AS_IF([test "x$HAVE_HAL_COMPAT" = "x1"], ENABLE_HAL_COMPAT=yes, ENABLE_HAL_COMPAT=no)
 AS_IF([test "x$HAVE_TCPWRAP" = "x1"], ENABLE_TCPWRAP=yes, ENABLE_TCPWRAP=no)
 AS_IF([test "x$HAVE_LIBSAMPLERATE" = "x1"], ENABLE_LIBSAMPLERATE=yes, ENABLE_LIBSAMPLERATE=no)
@@ -1563,7 +1569,8 @@ echo "
     Enable D-Bus:                  ${ENABLE_DBUS}
       Enable BlueZ 4:              ${ENABLE_BLUEZ_4}
       Enable BlueZ 5:              ${ENABLE_BLUEZ_5}
-        headset backend:           ${BLUETOOTH_HEADSET_BACKEND}
+        Enable ofono headsets:     ${ENABLE_BLUEZ_5_OFONO_HEADSET}
+        Enable native headsets:    ${ENABLE_BLUEZ_5_NATIVE_HEADSET}
     Enable udev:                   ${ENABLE_UDEV}
       Enable HAL->udev compat:     ${ENABLE_HAL_COMPAT}
     Enable systemd
diff --git a/src/Makefile.am b/src/Makefile.am
index 3cab31f14..4e60a9852 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -2129,8 +2129,16 @@ module_bluez4_device_la_CFLAGS = $(AM_CFLAGS) $(DBUS_CFLAGS) $(SBC_CFLAGS)
 libbluez5_util_la_SOURCES = \
 		modules/bluetooth/bluez5-util.c \
 		modules/bluetooth/bluez5-util.h \
-		modules/bluetooth/a2dp-codecs.h \
-		modules/bluetooth/backend-@BLUETOOTH_HEADSET_BACKEND@.c
+		modules/bluetooth/a2dp-codecs.h
+if HAVE_BLUEZ_5_OFONO_HEADSET
+libbluez5_util_la_SOURCES += \
+		modules/bluetooth/backend-ofono.c
+endif
+if HAVE_BLUEZ_5_NATIVE_HEADSET
+libbluez5_util_la_SOURCES += \
+		modules/bluetooth/backend-native.c
+endif
+
 libbluez5_util_la_LDFLAGS = -avoid-version
 libbluez5_util_la_LIBADD = $(MODULE_LIBADD) $(DBUS_LIBS)
 libbluez5_util_la_CFLAGS = $(AM_CFLAGS) $(DBUS_CFLAGS)
diff --git a/src/modules/bluetooth/backend-native.c b/src/modules/bluetooth/backend-native.c
index a9dc64cfe..66dacf9b0 100644
--- a/src/modules/bluetooth/backend-native.c
+++ b/src/modules/bluetooth/backend-native.c
@@ -464,7 +464,7 @@ static void profile_done(pa_bluetooth_backend *b, pa_bluetooth_profile_t profile
     }
 }
 
-pa_bluetooth_backend *pa_bluetooth_backend_new(pa_core *c, pa_bluetooth_discovery *y) {
+pa_bluetooth_backend *pa_bluetooth_native_backend_new(pa_core *c, pa_bluetooth_discovery *y) {
     pa_bluetooth_backend *backend;
     DBusError err;
 
@@ -488,7 +488,7 @@ pa_bluetooth_backend *pa_bluetooth_backend_new(pa_core *c, pa_bluetooth_discover
     return backend;
 }
 
-void pa_bluetooth_backend_free(pa_bluetooth_backend *backend) {
+void pa_bluetooth_native_backend_free(pa_bluetooth_backend *backend) {
     pa_assert(backend);
 
     pa_dbus_free_pending_list(&backend->pending);
diff --git a/src/modules/bluetooth/backend-ofono.c b/src/modules/bluetooth/backend-ofono.c
index ba10ed663..797d35c5e 100644
--- a/src/modules/bluetooth/backend-ofono.c
+++ b/src/modules/bluetooth/backend-ofono.c
@@ -582,7 +582,7 @@ static DBusHandlerResult hf_audio_agent_handler(DBusConnection *c, DBusMessage *
     return DBUS_HANDLER_RESULT_HANDLED;
 }
 
-pa_bluetooth_backend *pa_bluetooth_backend_new(pa_core *c, pa_bluetooth_discovery *y) {
+pa_bluetooth_backend *pa_bluetooth_ofono_backend_new(pa_core *c, pa_bluetooth_discovery *y) {
     pa_bluetooth_backend *backend;
     DBusError err;
     static const DBusObjectPathVTable vtable_hf_audio_agent = {
@@ -635,7 +635,7 @@ pa_bluetooth_backend *pa_bluetooth_backend_new(pa_core *c, pa_bluetooth_discover
     return backend;
 }
 
-void pa_bluetooth_backend_free(pa_bluetooth_backend *backend) {
+void pa_bluetooth_ofono_backend_free(pa_bluetooth_backend *backend) {
     pa_assert(backend);
 
     pa_dbus_free_pending_list(&backend->pending);
diff --git a/src/modules/bluetooth/bluez5-util.c b/src/modules/bluetooth/bluez5-util.c
index 9431aed6e..f7bf65485 100644
--- a/src/modules/bluetooth/bluez5-util.c
+++ b/src/modules/bluetooth/bluez5-util.c
@@ -87,7 +87,7 @@ struct pa_bluetooth_discovery {
     pa_hashmap *devices;
     pa_hashmap *transports;
 
-    pa_bluetooth_backend *backend;
+    pa_bluetooth_backend *ofono_backend, *native_backend;
     PA_LLIST_HEAD(pa_dbus_pending, pending);
 };
 
@@ -899,8 +899,10 @@ static void get_managed_objects_reply(DBusPendingCall *pending, void *userdata)
 
     y->objects_listed = true;
 
-    if (!y->backend)
-        y->backend = pa_bluetooth_backend_new(y->core, y);
+    if (!y->ofono_backend)
+        y->ofono_backend = pa_bluetooth_ofono_backend_new(y->core, y);
+    if (!y->ofono_backend && !y->native_backend)
+        y->native_backend = pa_bluetooth_native_backend_new(y->core, y);
 
 finish:
     dbus_message_unref(r);
@@ -954,9 +956,13 @@ static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *us
                 pa_hashmap_remove_all(y->devices);
                 pa_hashmap_remove_all(y->adapters);
                 y->objects_listed = false;
-                if (y->backend) {
-                    pa_bluetooth_backend_free(y->backend);
-                    y->backend = NULL;
+                if (y->ofono_backend) {
+                    pa_bluetooth_ofono_backend_free(y->ofono_backend);
+                    y->ofono_backend = NULL;
+                }
+                if (y->native_backend) {
+                    pa_bluetooth_native_backend_free(y->native_backend);
+                    y->native_backend = NULL;
                 }
             }
 
@@ -1648,8 +1654,10 @@ void pa_bluetooth_discovery_unref(pa_bluetooth_discovery *y) {
         pa_hashmap_free(y->transports);
     }
 
-    if (y->backend)
-        pa_bluetooth_backend_free(y->backend);
+    if (y->ofono_backend)
+        pa_bluetooth_ofono_backend_free(y->ofono_backend);
+    if (y->native_backend)
+        pa_bluetooth_native_backend_free(y->native_backend);
 
     if (y->connection) {
 
diff --git a/src/modules/bluetooth/bluez5-util.h b/src/modules/bluetooth/bluez5-util.h
index 3ef0ac837..d1abd39b5 100644
--- a/src/modules/bluetooth/bluez5-util.h
+++ b/src/modules/bluetooth/bluez5-util.h
@@ -117,8 +117,25 @@ struct pa_bluetooth_adapter {
     bool valid;
 };
 
-pa_bluetooth_backend *pa_bluetooth_backend_new(pa_core *c, pa_bluetooth_discovery *y);
-void pa_bluetooth_backend_free(pa_bluetooth_backend *b);
+#ifdef HAVE_BLUEZ_5_OFONO_HEADSET
+pa_bluetooth_backend *pa_bluetooth_ofono_backend_new(pa_core *c, pa_bluetooth_discovery *y);
+void pa_bluetooth_ofono_backend_free(pa_bluetooth_backend *b);
+#else
+static inline pa_bluetooth_backend *pa_bluetooth_ofono_backend_new(pa_core *c, pa_bluetooth_discovery *y) {
+    return NULL;
+}
+static inline void pa_bluetooth_ofono_backend_free(pa_bluetooth_backend *b) {}
+#endif
+
+#ifdef HAVE_BLUEZ_5_NATIVE_HEADSET
+pa_bluetooth_backend *pa_bluetooth_native_backend_new(pa_core *c, pa_bluetooth_discovery *y);
+void pa_bluetooth_native_backend_free(pa_bluetooth_backend *b);
+#else
+static inline pa_bluetooth_backend *pa_bluetooth_native_backend_new(pa_core *c, pa_bluetooth_discovery *y) {
+    return NULL;
+}
+static inline void pa_bluetooth_native_backend_free(pa_bluetooth_backend *b) {}
+#endif
 
 pa_bluetooth_transport *pa_bluetooth_transport_new(pa_bluetooth_device *d, const char *owner, const char *path,
                                                    pa_bluetooth_profile_t p, const uint8_t *config, size_t size);