Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 91 insertions, 0 deletions

diff --git a/drivers/hid/hid-belkin.c b/drivers/hid/hid-belkin.c
new file mode 100644
index 000000000..cc4cf138b
--- /dev/null
+++ b/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");