Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / hid / hid-belkin.c

diff --git a/kernel/drivers/hid/hid-belkin.c b/kernel/drivers/hid/hid-belkin.c
new file mode 100644 (file)
index 0000000..cc4cf13
--- /dev/null
+++ b/kernel/drivers/hid/hid-belkin.c
@@ -0,0 +1,91 @@
+/*
+ *  HID driver for some belkin "special" devices
+ *
+ *  Copyright (c) 1999 Andreas Gal
+ *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
+ *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
+ *  Copyright (c) 2006-2007 Jiri Kosina
+ *  Copyright (c) 2008 Jiri Slaby
+ */
+
+/*
+ * 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.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+
+#include "hid-ids.h"
+
+#define BELKIN_HIDDEV  0x01
+#define BELKIN_WKBD    0x02
+
+#define belkin_map_key_clear(c)        hid_map_usage_clear(hi, usage, bit, max, \
+                                       EV_KEY, (c))
+static int belkin_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+               struct hid_field *field, struct hid_usage *usage,
+               unsigned long **bit, int *max)
+{
+       unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
+
+       if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER ||
+                       !(quirks & BELKIN_WKBD))
+               return 0;
+
+       switch (usage->hid & HID_USAGE) {
+       case 0x03a: belkin_map_key_clear(KEY_SOUND);            break;
+       case 0x03b: belkin_map_key_clear(KEY_CAMERA);           break;
+       case 0x03c: belkin_map_key_clear(KEY_DOCUMENTS);        break;
+       default:
+               return 0;
+       }
+       return 1;
+}
+
+static int belkin_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+       unsigned long quirks = id->driver_data;
+       int ret;
+
+       hid_set_drvdata(hdev, (void *)quirks);
+
+       ret = hid_parse(hdev);
+       if (ret) {
+               hid_err(hdev, "parse failed\n");
+               goto err_free;
+       }
+
+       ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
+               ((quirks & BELKIN_HIDDEV) ? HID_CONNECT_HIDDEV_FORCE : 0));
+       if (ret) {
+               hid_err(hdev, "hw start failed\n");
+               goto err_free;
+       }
+
+       return 0;
+err_free:
+       return ret;
+}
+
+static const struct hid_device_id belkin_devices[] = {
+       { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM),
+               .driver_data = BELKIN_HIDDEV },
+       { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD),
+               .driver_data = BELKIN_WKBD },
+       { }
+};
+MODULE_DEVICE_TABLE(hid, belkin_devices);
+
+static struct hid_driver belkin_driver = {
+       .name = "belkin",
+       .id_table = belkin_devices,
+       .input_mapping = belkin_input_mapping,
+       .probe = belkin_probe,
+};
+module_hid_driver(belkin_driver);
+
+MODULE_LICENSE("GPL");