Adding upstream version 4.19.249.upstream/4.19.249

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

1 files changed, 104 insertions, 0 deletions

diff --git a/drivers/hid/hid-chicony.c b/drivers/hid/hid-chicony.c
new file mode 100644
index 000000000..218f0e090
--- /dev/null
+++ b/drivers/hid/hid-chicony.c
@@ -0,0 +1,104 @@
+/*
+ *  HID driver for some chicony "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) 2007 Paul Walmsley
+ *  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/input.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+
+#include "hid-ids.h"
+
+#define ch_map_key_clear(c)	hid_map_usage_clear(hi, usage, bit, max, \
+					EV_KEY, (c))
+static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+		struct hid_field *field, struct hid_usage *usage,
+		unsigned long **bit, int *max)
+{
+	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
+		return 0;
+
+	set_bit(EV_REP, hi->input->evbit);
+	switch (usage->hid & HID_USAGE) {
+	case 0xff01: ch_map_key_clear(BTN_1);	break;
+	case 0xff02: ch_map_key_clear(BTN_2);	break;
+	case 0xff03: ch_map_key_clear(BTN_3);	break;
+	case 0xff04: ch_map_key_clear(BTN_4);	break;
+	case 0xff05: ch_map_key_clear(BTN_5);	break;
+	case 0xff06: ch_map_key_clear(BTN_6);	break;
+	case 0xff07: ch_map_key_clear(BTN_7);	break;
+	case 0xff08: ch_map_key_clear(BTN_8);	break;
+	case 0xff09: ch_map_key_clear(BTN_9);	break;
+	case 0xff0a: ch_map_key_clear(BTN_A);	break;
+	case 0xff0b: ch_map_key_clear(BTN_B);	break;
+	case 0x00f1: ch_map_key_clear(KEY_WLAN);	break;
+	case 0x00f2: ch_map_key_clear(KEY_BRIGHTNESSDOWN);	break;
+	case 0x00f3: ch_map_key_clear(KEY_BRIGHTNESSUP);	break;
+	case 0x00f4: ch_map_key_clear(KEY_DISPLAY_OFF);	break;
+	case 0x00f7: ch_map_key_clear(KEY_CAMERA);	break;
+	case 0x00f8: ch_map_key_clear(KEY_PROG1);	break;
+	default:
+		return 0;
+	}
+	return 1;
+}
+
+static __u8 *ch_switch12_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+		unsigned int *rsize)
+{
+	struct usb_interface *intf;
+
+	if (!hid_is_usb(hdev))
+		return rdesc;
+
+	intf = to_usb_interface(hdev->dev.parent);
+	if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
+		/* Change usage maximum and logical maximum from 0x7fff to
+		 * 0x2fff, so they don't exceed HID_MAX_USAGES */
+		switch (hdev->product) {
+		case USB_DEVICE_ID_CHICONY_ACER_SWITCH12:
+			if (*rsize >= 128 && rdesc[64] == 0xff && rdesc[65] == 0x7f
+					&& rdesc[69] == 0xff && rdesc[70] == 0x7f) {
+				hid_info(hdev, "Fixing up report descriptor\n");
+				rdesc[65] = rdesc[70] = 0x2f;
+			}
+			break;
+		}
+
+	}
+	return rdesc;
+}
+
+
+static const struct hid_device_id ch_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_ACER_SWITCH12) },
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, ch_devices);
+
+static struct hid_driver ch_driver = {
+	.name = "chicony",
+	.id_table = ch_devices,
+	.report_fixup = ch_switch12_report_fixup,
+	.input_mapping = ch_input_mapping,
+};
+module_hid_driver(ch_driver);
+
+MODULE_LICENSE("GPL");