[Feature] add GA346 baseline version
Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/drivers/hid/hid-chicony.c b/src/kernel/linux/v4.19/drivers/hid/hid-chicony.c
new file mode 100644
index 0000000..397a789
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/hid/hid-chicony.c
@@ -0,0 +1,100 @@
+/*
+ * 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 = 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");