107 lines · c
1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * HID driver for some petalynx "special" devices4 *5 * Copyright (c) 1999 Andreas Gal6 * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>7 * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc8 * Copyright (c) 2006-2007 Jiri Kosina9 * Copyright (c) 2008 Jiri Slaby10 */11 12/*13 */14 15#include <linux/device.h>16#include <linux/hid.h>17#include <linux/module.h>18 19#include "hid-ids.h"20 21/* Petalynx Maxter Remote has maximum for consumer page set too low */22static const __u8 *pl_report_fixup(struct hid_device *hdev, __u8 *rdesc,23 unsigned int *rsize)24{25 if (*rsize >= 62 && rdesc[39] == 0x2a && rdesc[40] == 0xf5 &&26 rdesc[41] == 0x00 && rdesc[59] == 0x26 &&27 rdesc[60] == 0xf9 && rdesc[61] == 0x00) {28 hid_info(hdev, "fixing up Petalynx Maxter Remote report descriptor\n");29 rdesc[60] = 0xfa;30 rdesc[40] = 0xfa;31 }32 return rdesc;33}34 35#define pl_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \36 EV_KEY, (c))37static int pl_input_mapping(struct hid_device *hdev, struct hid_input *hi,38 struct hid_field *field, struct hid_usage *usage,39 unsigned long **bit, int *max)40{41 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_LOGIVENDOR) {42 switch (usage->hid & HID_USAGE) {43 case 0x05a: pl_map_key_clear(KEY_TEXT); break;44 case 0x05b: pl_map_key_clear(KEY_RED); break;45 case 0x05c: pl_map_key_clear(KEY_GREEN); break;46 case 0x05d: pl_map_key_clear(KEY_YELLOW); break;47 case 0x05e: pl_map_key_clear(KEY_BLUE); break;48 default:49 return 0;50 }51 return 1;52 }53 54 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) {55 switch (usage->hid & HID_USAGE) {56 case 0x0f6: pl_map_key_clear(KEY_NEXT); break;57 case 0x0fa: pl_map_key_clear(KEY_BACK); break;58 default:59 return 0;60 }61 return 1;62 }63 64 return 0;65}66 67static int pl_probe(struct hid_device *hdev, const struct hid_device_id *id)68{69 int ret;70 71 hdev->quirks |= HID_QUIRK_NOGET;72 73 ret = hid_parse(hdev);74 if (ret) {75 hid_err(hdev, "parse failed\n");76 goto err_free;77 }78 79 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);80 if (ret) {81 hid_err(hdev, "hw start failed\n");82 goto err_free;83 }84 85 return 0;86err_free:87 return ret;88}89 90static const struct hid_device_id pl_devices[] = {91 { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },92 { }93};94MODULE_DEVICE_TABLE(hid, pl_devices);95 96static struct hid_driver pl_driver = {97 .name = "petalynx",98 .id_table = pl_devices,99 .report_fixup = pl_report_fixup,100 .input_mapping = pl_input_mapping,101 .probe = pl_probe,102};103module_hid_driver(pl_driver);104 105MODULE_DESCRIPTION("HID driver for some petalynx \"special\" devices");106MODULE_LICENSE("GPL");107