From: Ravi kumar Veeramally <ravikumar.veeramally@xxxxxxxxxxxxxxx>
---
Makefile.android | 3 +-
android/hidhost.c | 244 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 246 insertions(+), 1 deletion(-)
create mode 100644 android/hidhost.c
diff --git a/Makefile.android b/Makefile.android
index aebc715..4ff3abe 100644
--- a/Makefile.android
+++ b/Makefile.android
@@ -9,7 +9,8 @@ android_bluetoothd_SOURCES = android/main.c \
src/shared/util.h src/shared/util.c \
src/shared/mgmt.h src/shared/mgmt.c \
android/adapter.h android/adapter.c \
- android/ipc.h android/ipc.c
+ android/ipc.h android/ipc.c \
+ android/hidhost.c
android_bluetoothd_LDADD = lib/libbluetooth-internal.la @GLIB_LIBS@
diff --git a/android/hidhost.c b/android/hidhost.c
new file mode 100644
index 0000000..4ab914e
--- /dev/null
+++ b/android/hidhost.c
@@ -0,0 +1,244 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2013 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 <stdbool.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include <linux/uhid.h>
+
+#include "log.h"
+#include "adapter.h"
+#include "device.h"
+
+#define UHID_DEVICE_FILE "/dev/uhid"
+
+struct input_device {
+ uint16_t id;
+ struct bt_device *device;
+ int uhid_fd;
+ guint uhid_watch_id;
+};
+
+static GSList *devices = NULL;
+
+static int uhid_create(int fd)
+{
+ struct uhid_event ev;
+
+ /* create uHID device */
+ memset(&ev, 0, sizeof(ev));
+ ev.type = UHID_CREATE;
+ strcpy((char *) ev.u.create.name, "bluez-input-device");
+ ev.u.create.vendor = 0;
+ ev.u.create.product = 0;
+ ev.u.create.version = 0;
+ ev.u.create.country = 0;
+ ev.u.create.bus = BUS_BLUETOOTH;
+ ev.u.create.rd_data = 0;
+ ev.u.create.rd_size = 0;
+
+ if (write(fd, &ev, sizeof(ev)) < 0) {
+ error("Failed to create uHID device: %s", strerror(errno));
+ return -errno;
+ }
+
+ return 0;
+}
+
+static void uhid_destroy(int fd)
+{
+ struct uhid_event ev;
+
+ /* destroy uHID device */
+ memset(&ev, 0, sizeof(ev));
+ ev.type = UHID_DESTROY;
+
+ if (write(fd, &ev, sizeof(ev)) < 0)
+ error("Failed to destroy uHID device: %s", strerror(errno));
+}
+
+static int uhid_send_input(int fd, uint8_t *data, ssize_t size)
+{
+ struct uhid_event ev;
+
+ /* send data to uHID device */
+ memset(&ev, 0, sizeof(ev));
+ ev.type = UHID_INPUT;
+ ev.u.input.size = size;
+ memcpy(ev.u.input.data, data, size);
+
+ if (write(fd, &ev, sizeof(ev)) < 0) {
+ error("Failed to send input to uHID device: %s", strerror(errno));
+ return -errno;
+ }
+
+ return 0;
+}
+
+static int get_report(int fd)
+{
+ /* TODO: prepare get_report request */
+
+ return uhid_send_input(fd, NULL, 0);
+}
+
+static int set_report(int fd)
+{
+ /* TODO: prepare set_report request */
+
+ return uhid_send_input(fd, NULL, 0);
+}
+
+static int get_protocol(int fd)
+{
+ /* TODO: prepare get_protocol request */
+
+ return uhid_send_input(fd, NULL, 0);
+}
+
+static int set_protocol(int fd)
+{
+ /* TODO: prepare set_protocol request */
+
+ return uhid_send_input(fd, NULL, 0);
+}
+
+static gboolean uhid_event_cb(GIOChannel *io, GIOCondition cond,
+ gpointer user_data)
+{
+ struct input_device *inputdev = user_data;
+ struct uhid_event ev;
+ ssize_t bread;
+ int fd;
+
+ if (cond & (G_IO_ERR | G_IO_NVAL))
+ goto failed;
+
+ fd = g_io_channel_unix_get_fd(io);
+ memset(&ev, 0, sizeof(ev));
+
+ bread = read(fd, &ev, sizeof(ev));
+ if (bread < 0) {
+ int err = -errno;
+ DBG("uhid-dev read: %s(%d)", strerror(-err), -err);
+ goto failed;
+ }
+
+ DBG("uHID event type %d received", ev.type);
+
+ switch (ev.type) {
+ case UHID_START:
+ case UHID_STOP:
+ case UHID_OPEN:
+ case UHID_CLOSE:
+ break;
+ case UHID_OUTPUT:
+ case UHID_FEATURE:
+ // TODO inform hal_if through ipc
+ break;
+ case UHID_OUTPUT_EV:
+ DBG("Unsupported uHID output event: type %d code %d value %d",
+ ev.u.output_ev.type, ev.u.output_ev.code,
+ ev.u.output_ev.value);
+ break;
+ default:
+ warn("unexpected uHID event");
+ break;
+ }
+
+ return TRUE;
+
+failed:
+ inputdev->uhid_watch_id = 0;
+ return FALSE;
+}
+
+static struct input_device *input_new_device(struct bt_device *device)
+{
+ struct input_device *inputdev;
+
+ inputdev = g_try_new0(struct input_device, 1);
+ if (!inputdev)
+ return NULL;
+
+ return inputdev;
+}
+
+static void input_free_device(struct input_device *inputdev)
+{
+ devices = g_slist_remove(devices, inputdev);
+ g_free(inputdev);
+}
+
+
+static struct input_device *input_register_device(struct bt_device *device)
+{
+ struct input_device *inputdev;
+ GIOCondition cond = G_IO_IN | G_IO_ERR | G_IO_NVAL;
+ GIOChannel *io;
+
+ inputdev = input_new_device(device);
+ if (!inputdev)
+ return NULL;
+
+ inputdev->uhid_fd = open(UHID_DEVICE_FILE, O_RDWR | O_CLOEXEC);
+ if (inputdev->uhid_fd < 0) {
+ error("Failed to open uHID device: %s(%d)", strerror(errno),
+ errno);
+ input_free_device(inputdev);
+ return NULL;
+ }
+
+ io = g_io_channel_unix_new(inputdev->uhid_fd);
+ g_io_channel_set_encoding(io, NULL, NULL);
+ inputdev->uhid_watch_id = g_io_add_watch(io, cond, uhid_event_cb,
+ inputdev);
+ g_io_channel_unref(io);
+
+ devices = g_slist_append(devices, inputdev);
+
+ return inputdev;
+}
+
+static int input_unregister_device(struct input_device *inputdev)
+{
+ if (inputdev->uhid_watch_id) {
+ g_source_remove(inputdev->uhid_watch_id);
+ inputdev->uhid_watch_id = 0;
+ }
+
+ uhid_destroy(inputdev->uhid_fd);
+ close(inputdev->uhid_fd);
+ inputdev->uhid_fd = -1;
+
+ input_free_device(inputdev);
+
+ return 0;
+}
--
1.8.1.2
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