/*
|
* 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");
|
