200 lines
5.8 KiB
C
200 lines
5.8 KiB
C
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
||
|
|
/*
|
||
|
|
* HID driver for some samsung "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) 2008 Jiri Slaby
|
||
|
|
* Copyright (c) 2010 Don Prince <dhprince.devel@yahoo.co.uk>
|
||
|
|
*
|
||
|
|
* This driver supports several HID devices:
|
||
|
|
*
|
||
|
|
* [0419:0001] Samsung IrDA remote controller (reports as Cypress USB Mouse).
|
||
|
|
* various hid report fixups for different variants.
|
||
|
|
*
|
||
|
|
* [0419:0600] Creative Desktop Wireless 6000 keyboard/mouse combo
|
||
|
|
* several key mappings used from the consumer usage page
|
||
|
|
* deviate from the USB HUT 1.12 standard.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/device.h>
|
||
|
|
#include <linux/usb.h>
|
||
|
|
#include <linux/hid.h>
|
||
|
|
#include <linux/module.h>
|
||
|
|
|
||
|
|
#include "hid-ids.h"
|
||
|
|
|
||
|
|
/*
|
||
|
|
* There are several variants for 0419:0001:
|
||
|
|
*
|
||
|
|
* 1. 184 byte report descriptor
|
||
|
|
* Vendor specific report #4 has a size of 48 bit,
|
||
|
|
* and therefore is not accepted when inspecting the descriptors.
|
||
|
|
* As a workaround we reinterpret the report as:
|
||
|
|
* Variable type, count 6, size 8 bit, log. maximum 255
|
||
|
|
* The burden to reconstruct the data is moved into user space.
|
||
|
|
*
|
||
|
|
* 2. 203 byte report descriptor
|
||
|
|
* Report #4 has an array field with logical range 0..18 instead of 1..15.
|
||
|
|
*
|
||
|
|
* 3. 135 byte report descriptor
|
||
|
|
* Report #4 has an array field with logical range 0..17 instead of 1..14.
|
||
|
|
*
|
||
|
|
* 4. 171 byte report descriptor
|
||
|
|
* Report #3 has an array field with logical range 0..1 instead of 1..3.
|
||
|
|
*/
|
||
|
|
static inline void samsung_irda_dev_trace(struct hid_device *hdev,
|
||
|
|
unsigned int rsize)
|
||
|
|
{
|
||
|
|
hid_info(hdev, "fixing up Samsung IrDA %d byte report descriptor\n",
|
||
|
|
rsize);
|
||
|
|
}
|
||
|
|
|
||
|
|
static __u8 *samsung_irda_report_fixup(struct hid_device *hdev, __u8 *rdesc,
|
||
|
|
unsigned int *rsize)
|
||
|
|
{
|
||
|
|
if (*rsize == 184 && rdesc[175] == 0x25 && rdesc[176] == 0x40 &&
|
||
|
|
rdesc[177] == 0x75 && rdesc[178] == 0x30 &&
|
||
|
|
rdesc[179] == 0x95 && rdesc[180] == 0x01 &&
|
||
|
|
rdesc[182] == 0x40) {
|
||
|
|
samsung_irda_dev_trace(hdev, 184);
|
||
|
|
rdesc[176] = 0xff;
|
||
|
|
rdesc[178] = 0x08;
|
||
|
|
rdesc[180] = 0x06;
|
||
|
|
rdesc[182] = 0x42;
|
||
|
|
} else
|
||
|
|
if (*rsize == 203 && rdesc[192] == 0x15 && rdesc[193] == 0x0 &&
|
||
|
|
rdesc[194] == 0x25 && rdesc[195] == 0x12) {
|
||
|
|
samsung_irda_dev_trace(hdev, 203);
|
||
|
|
rdesc[193] = 0x1;
|
||
|
|
rdesc[195] = 0xf;
|
||
|
|
} else
|
||
|
|
if (*rsize == 135 && rdesc[124] == 0x15 && rdesc[125] == 0x0 &&
|
||
|
|
rdesc[126] == 0x25 && rdesc[127] == 0x11) {
|
||
|
|
samsung_irda_dev_trace(hdev, 135);
|
||
|
|
rdesc[125] = 0x1;
|
||
|
|
rdesc[127] = 0xe;
|
||
|
|
} else
|
||
|
|
if (*rsize == 171 && rdesc[160] == 0x15 && rdesc[161] == 0x0 &&
|
||
|
|
rdesc[162] == 0x25 && rdesc[163] == 0x01) {
|
||
|
|
samsung_irda_dev_trace(hdev, 171);
|
||
|
|
rdesc[161] = 0x1;
|
||
|
|
rdesc[163] = 0x3;
|
||
|
|
}
|
||
|
|
return rdesc;
|
||
|
|
}
|
||
|
|
|
||
|
|
#define samsung_kbd_mouse_map_key_clear(c) \
|
||
|
|
hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
|
||
|
|
|
||
|
|
static int samsung_kbd_mouse_input_mapping(struct hid_device *hdev,
|
||
|
|
struct hid_input *hi, struct hid_field *field, struct hid_usage *usage,
|
||
|
|
unsigned long **bit, int *max)
|
||
|
|
{
|
||
|
|
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
|
||
|
|
unsigned short ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
|
||
|
|
|
||
|
|
if (1 != ifnum || HID_UP_CONSUMER != (usage->hid & HID_USAGE_PAGE))
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
dbg_hid("samsung wireless keyboard/mouse input mapping event [0x%x]\n",
|
||
|
|
usage->hid & HID_USAGE);
|
||
|
|
|
||
|
|
switch (usage->hid & HID_USAGE) {
|
||
|
|
/* report 2 */
|
||
|
|
case 0x183: samsung_kbd_mouse_map_key_clear(KEY_MEDIA); break;
|
||
|
|
case 0x195: samsung_kbd_mouse_map_key_clear(KEY_EMAIL); break;
|
||
|
|
case 0x196: samsung_kbd_mouse_map_key_clear(KEY_CALC); break;
|
||
|
|
case 0x197: samsung_kbd_mouse_map_key_clear(KEY_COMPUTER); break;
|
||
|
|
case 0x22b: samsung_kbd_mouse_map_key_clear(KEY_SEARCH); break;
|
||
|
|
case 0x22c: samsung_kbd_mouse_map_key_clear(KEY_WWW); break;
|
||
|
|
case 0x22d: samsung_kbd_mouse_map_key_clear(KEY_BACK); break;
|
||
|
|
case 0x22e: samsung_kbd_mouse_map_key_clear(KEY_FORWARD); break;
|
||
|
|
case 0x22f: samsung_kbd_mouse_map_key_clear(KEY_FAVORITES); break;
|
||
|
|
case 0x230: samsung_kbd_mouse_map_key_clear(KEY_REFRESH); break;
|
||
|
|
case 0x231: samsung_kbd_mouse_map_key_clear(KEY_STOP); break;
|
||
|
|
default:
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static __u8 *samsung_report_fixup(struct hid_device *hdev, __u8 *rdesc,
|
||
|
|
unsigned int *rsize)
|
||
|
|
{
|
||
|
|
if (USB_DEVICE_ID_SAMSUNG_IR_REMOTE == hdev->product)
|
||
|
|
rdesc = samsung_irda_report_fixup(hdev, rdesc, rsize);
|
||
|
|
return rdesc;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int samsung_input_mapping(struct hid_device *hdev, struct hid_input *hi,
|
||
|
|
struct hid_field *field, struct hid_usage *usage,
|
||
|
|
unsigned long **bit, int *max)
|
||
|
|
{
|
||
|
|
int ret = 0;
|
||
|
|
|
||
|
|
if (USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE == hdev->product)
|
||
|
|
ret = samsung_kbd_mouse_input_mapping(hdev,
|
||
|
|
hi, field, usage, bit, max);
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int samsung_probe(struct hid_device *hdev,
|
||
|
|
const struct hid_device_id *id)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
unsigned int cmask = HID_CONNECT_DEFAULT;
|
||
|
|
|
||
|
|
if (!hid_is_usb(hdev))
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
ret = hid_parse(hdev);
|
||
|
|
if (ret) {
|
||
|
|
hid_err(hdev, "parse failed\n");
|
||
|
|
goto err_free;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (USB_DEVICE_ID_SAMSUNG_IR_REMOTE == hdev->product) {
|
||
|
|
if (hdev->rsize == 184) {
|
||
|
|
/* disable hidinput, force hiddev */
|
||
|
|
cmask = (cmask & ~HID_CONNECT_HIDINPUT) |
|
||
|
|
HID_CONNECT_HIDDEV_FORCE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = hid_hw_start(hdev, cmask);
|
||
|
|
if (ret) {
|
||
|
|
hid_err(hdev, "hw start failed\n");
|
||
|
|
goto err_free;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
err_free:
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct hid_device_id samsung_devices[] = {
|
||
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
|
||
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
|
||
|
|
{ }
|
||
|
|
};
|
||
|
|
MODULE_DEVICE_TABLE(hid, samsung_devices);
|
||
|
|
|
||
|
|
static struct hid_driver samsung_driver = {
|
||
|
|
.name = "samsung",
|
||
|
|
.id_table = samsung_devices,
|
||
|
|
.report_fixup = samsung_report_fixup,
|
||
|
|
.input_mapping = samsung_input_mapping,
|
||
|
|
.probe = samsung_probe,
|
||
|
|
};
|
||
|
|
module_hid_driver(samsung_driver);
|
||
|
|
|
||
|
|
MODULE_LICENSE("GPL");
|