From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
---
Makefile.am | 8 +++
src/shared/uhid.c | 175 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
src/shared/uhid.h | 43 ++++++++++++++
unit/test-uhid.c | 37 ++++++++++++
4 files changed, 263 insertions(+)
create mode 100644 src/shared/uhid.c
create mode 100644 src/shared/uhid.h
create mode 100644 unit/test-uhid.c
diff --git a/Makefile.am b/Makefile.am
index 3ca98d0..6b989b4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -263,6 +263,14 @@ unit_test_mgmt_SOURCES = unit/test-mgmt.c \
src/shared/mgmt.h src/shared/mgmt.c
unit_test_mgmt_LDADD = @GLIB_LIBS@
+unit_tests += unit/test-uhid
+
+unit_test_uhid_SOURCES = unit/test-uhid.c \
+ src/shared/uhid.h src/shared/uhid.c \
+ src/shared/io.h src/shared/io-glib.c \
+ src/shared/util.h src/shared/util.c
+unit_test_uhid_LDADD = @GLIB_LIBS@
+
unit_tests += unit/test-sdp
unit_test_sdp_SOURCES = unit/test-sdp.c \
diff --git a/src/shared/uhid.c b/src/shared/uhid.c
new file mode 100644
index 0000000..13d9b5e
--- /dev/null
+++ b/src/shared/uhid.c
@@ -0,0 +1,175 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2014 Intel Corporation. All rights reserved.
+ *
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+
+#include "src/shared/io.h"
+#include "src/shared/util.h"
+#include "src/shared/uhid.h"
+
+#define UHID_DEVICE_FILE "/dev/uhid"
+
+struct bt_uhid {
+ int ref_count;
+ struct io *io;
+};
+
+static void uhid_free(struct bt_uhid *uhid)
+{
+ if (uhid->io)
+ io_destroy(uhid->io);
+
+ free(uhid);
+}
+
+static bool uhid_read_handler(struct io *io, void *user_data)
+{
+ int fd;
+ ssize_t len;
+ struct uhid_event ev;
+
+ fd = io_get_fd(io);
+ if (fd < 0)
+ return false;
+
+ memset(&ev, 0, sizeof(ev));
+
+ len = read(fd, &ev, sizeof(ev));
+ if (len < 0)
+ return false;
+
+ if ((size_t) len < sizeof(ev.type))
+ return false;
+
+ return true;
+}
+
+struct bt_uhid *bt_uhid_new_default(void)
+{
+ struct bt_uhid *uhid;
+ int fd;
+
+ fd = open(UHID_DEVICE_FILE, O_RDWR | O_CLOEXEC);
+ if (fd < 0)
+ return NULL;
+
+ uhid = bt_uhid_new(fd);
+ if (!uhid) {
+ close(fd);
+ return NULL;
+ }
+
+ io_set_close_on_destroy(uhid->io, true);
+
+ return uhid;
+}
+
+struct bt_uhid *bt_uhid_new(int fd)
+{
+ struct bt_uhid *uhid;
+
+ uhid = new0(struct bt_uhid, 1);
+ if (!uhid)
+ return NULL;
+
+ uhid->io = io_new(fd);
+ if (!uhid->io)
+ goto failed;
+
+ if (!io_set_read_handler(uhid->io, uhid_read_handler, uhid, NULL))
+ goto failed;
+
+ return bt_uhid_ref(uhid);
+
+failed:
+ uhid_free(uhid);
+ return NULL;
+}
+
+struct bt_uhid *bt_uhid_ref(struct bt_uhid *uhid)
+{
+ if (!uhid)
+ return NULL;
+
+ __sync_fetch_and_add(&uhid->ref_count, 1);
+
+ return uhid;
+}
+
+void bt_uhid_unref(struct bt_uhid *uhid)
+{
+ if (!uhid)
+ return;
+
+ if (__sync_sub_and_fetch(&uhid->ref_count, 1))
+ return;
+
+ uhid_free(uhid);
+}
+
+bool bt_uhid_set_close_on_unref(struct bt_uhid *uhid, bool do_close)
+{
+ if (!uhid || !uhid->io)
+ return false;
+
+ io_set_close_on_destroy(uhid->io, do_close);
+
+ return true;
+}
+
+unsigned int bt_uhid_register(struct bt_uhid *uhid, uint32_t type,
+ bt_uhid_notify_func_t func, void *user_data)
+{
+ return 0;
+}
+
+bool bt_uhid_unregister(struct bt_uhid *uhid, unsigned int id)
+{
+ return false;
+}
+
+int bt_uhid_send(struct bt_uhid *uhid, const struct uhid_event *ev)
+{
+ int fd;
+ ssize_t len;
+
+ if (!uhid->io)
+ return -ENOTCONN;
+
+ fd = io_get_fd(uhid->io);
+
+ len = write(fd, ev, sizeof(*ev));
+ if (len < 0)
+ return -errno;
+
+ /* uHID kernel driver does not handle partial writes */
+ return len != sizeof(*ev) ? -EIO : 0;
+}
diff --git a/src/shared/uhid.h b/src/shared/uhid.h
new file mode 100644
index 0000000..fcf5379
--- /dev/null
+++ b/src/shared/uhid.h
@@ -0,0 +1,43 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2014 Intel Corporation. All rights reserved.
+ *
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <linux/uhid.h>
+
+struct bt_uhid;
+
+struct bt_uhid *bt_uhid_new_default(void);
+struct bt_uhid *bt_uhid_new(int fd);
+
+struct bt_uhid *bt_uhid_ref(struct bt_uhid *uhid);
+void bt_uhid_unref(struct bt_uhid *uhid);
+
+bool bt_uhid_set_close_on_unref(struct bt_uhid *uhid, bool do_close);
+
+typedef void (*bt_uhid_callback_t)(struct uhid_event *ev, void *user_data);
+unsigned int bt_uhid_register(struct bt_uhid *uhid, uint32_t event,
+ bt_uhid_callback_t func, void *user_data);
+bool bt_uhid_unregister(struct bt_uhid *uhid, unsigned int id);
+
+int bt_uhid_send(struct bt_uhid *uhid, const struct uhid_event *ev);
diff --git a/unit/test-uhid.c b/unit/test-uhid.c
new file mode 100644
index 0000000..e0fb411
--- /dev/null
+++ b/unit/test-uhid.c
@@ -0,0 +1,37 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2014 Intel Corporation. All rights reserved.
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <glib.h>
+
+#include "src/shared/uhid.h"
+
+int main(int argc, char *argv[])
+{
+ g_test_init(&argc, &argv, NULL);
+
+ return g_test_run();
+}
--
1.9.0
--
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