Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *  HID driver for some belkin "special" devices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *  Copyright (c) 1999 Andreas Gal
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  *  Copyright (c) 2006-2007 Jiri Kosina
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  *  Copyright (c) 2008 Jiri Slaby
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/hid.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "hid-ids.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define BELKIN_HIDDEV	0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define BELKIN_WKBD	0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define belkin_map_key_clear(c)	hid_map_usage_clear(hi, usage, bit, max, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 					EV_KEY, (c))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static int belkin_input_mapping(struct hid_device *hdev, struct hid_input *hi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 		struct hid_field *field, struct hid_usage *usage,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 		unsigned long **bit, int *max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 			!(quirks & BELKIN_WKBD))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	switch (usage->hid & HID_USAGE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	case 0x03a: belkin_map_key_clear(KEY_SOUND);		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	case 0x03b: belkin_map_key_clear(KEY_CAMERA);		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	case 0x03c: belkin_map_key_clear(KEY_DOCUMENTS);	break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) static int belkin_probe(struct hid_device *hdev, const struct hid_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	unsigned long quirks = id->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	hid_set_drvdata(hdev, (void *)quirks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	ret = hid_parse(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 		hid_err(hdev, "parse failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 		goto err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 		((quirks & BELKIN_HIDDEV) ? HID_CONNECT_HIDDEV_FORCE : 0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 		hid_err(hdev, "hw start failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 		goto err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) err_free:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) static const struct hid_device_id belkin_devices[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 	{ HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 		.driver_data = BELKIN_HIDDEV },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 	{ HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 		.driver_data = BELKIN_WKBD },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) 	{ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) MODULE_DEVICE_TABLE(hid, belkin_devices);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) static struct hid_driver belkin_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) 	.name = "belkin",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) 	.id_table = belkin_devices,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) 	.input_mapping = belkin_input_mapping,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) 	.probe = belkin_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) module_hid_driver(belkin_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) MODULE_LICENSE("GPL");