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Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
98 lines
2.9 KiB
C
98 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* HID driver for some chicony "special" devices
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*
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* Copyright (c) 1999 Andreas Gal
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* Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
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* Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
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* Copyright (c) 2006-2007 Jiri Kosina
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* Copyright (c) 2007 Paul Walmsley
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* Copyright (c) 2008 Jiri Slaby
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*/
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/*
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*/
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#include <linux/device.h>
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#include <linux/input.h>
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#include <linux/hid.h>
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#include <linux/module.h>
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#include <linux/usb.h>
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#include "hid-ids.h"
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#define ch_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
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EV_KEY, (c))
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static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
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struct hid_field *field, struct hid_usage *usage,
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unsigned long **bit, int *max)
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{
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if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
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return 0;
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set_bit(EV_REP, hi->input->evbit);
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switch (usage->hid & HID_USAGE) {
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case 0xff01: ch_map_key_clear(BTN_1); break;
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case 0xff02: ch_map_key_clear(BTN_2); break;
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case 0xff03: ch_map_key_clear(BTN_3); break;
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case 0xff04: ch_map_key_clear(BTN_4); break;
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case 0xff05: ch_map_key_clear(BTN_5); break;
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case 0xff06: ch_map_key_clear(BTN_6); break;
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case 0xff07: ch_map_key_clear(BTN_7); break;
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case 0xff08: ch_map_key_clear(BTN_8); break;
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case 0xff09: ch_map_key_clear(BTN_9); break;
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case 0xff0a: ch_map_key_clear(BTN_A); break;
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case 0xff0b: ch_map_key_clear(BTN_B); break;
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case 0x00f1: ch_map_key_clear(KEY_WLAN); break;
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case 0x00f2: ch_map_key_clear(KEY_BRIGHTNESSDOWN); break;
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case 0x00f3: ch_map_key_clear(KEY_BRIGHTNESSUP); break;
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case 0x00f4: ch_map_key_clear(KEY_DISPLAY_OFF); break;
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case 0x00f7: ch_map_key_clear(KEY_CAMERA); break;
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case 0x00f8: ch_map_key_clear(KEY_PROG1); break;
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default:
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return 0;
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}
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return 1;
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}
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static __u8 *ch_switch12_report_fixup(struct hid_device *hdev, __u8 *rdesc,
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unsigned int *rsize)
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{
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struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
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if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
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/* Change usage maximum and logical maximum from 0x7fff to
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* 0x2fff, so they don't exceed HID_MAX_USAGES */
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switch (hdev->product) {
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case USB_DEVICE_ID_CHICONY_ACER_SWITCH12:
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if (*rsize >= 128 && rdesc[64] == 0xff && rdesc[65] == 0x7f
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&& rdesc[69] == 0xff && rdesc[70] == 0x7f) {
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hid_info(hdev, "Fixing up report descriptor\n");
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rdesc[65] = rdesc[70] = 0x2f;
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}
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break;
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}
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}
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return rdesc;
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}
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static const struct hid_device_id ch_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_ACER_SWITCH12) },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, ch_devices);
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static struct hid_driver ch_driver = {
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.name = "chicony",
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.id_table = ch_devices,
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.report_fixup = ch_switch12_report_fixup,
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.input_mapping = ch_input_mapping,
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};
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module_hid_driver(ch_driver);
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MODULE_LICENSE("GPL");
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