linux/drivers/hid/hid-petalynx.c
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   1/*
   2 *  HID driver for some petalynx "special" devices
   3 *
   4 *  Copyright (c) 1999 Andreas Gal
   5 *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
   6 *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
   7 *  Copyright (c) 2006-2007 Jiri Kosina
   8 *  Copyright (c) 2007 Paul Walmsley
   9 *  Copyright (c) 2008 Jiri Slaby
  10 */
  11
  12/*
  13 * This program is free software; you can redistribute it and/or modify it
  14 * under the terms of the GNU General Public License as published by the Free
  15 * Software Foundation; either version 2 of the License, or (at your option)
  16 * any later version.
  17 */
  18
  19#include <linux/device.h>
  20#include <linux/hid.h>
  21#include <linux/module.h>
  22
  23#include "hid-ids.h"
  24
  25/* Petalynx Maxter Remote has maximum for consumer page set too low */
  26static __u8 *pl_report_fixup(struct hid_device *hdev, __u8 *rdesc,
  27                unsigned int *rsize)
  28{
  29        if (*rsize >= 60 && rdesc[39] == 0x2a && rdesc[40] == 0xf5 &&
  30                        rdesc[41] == 0x00 && rdesc[59] == 0x26 &&
  31                        rdesc[60] == 0xf9 && rdesc[61] == 0x00) {
  32                hid_info(hdev, "fixing up Petalynx Maxter Remote report descriptor\n");
  33                rdesc[60] = 0xfa;
  34                rdesc[40] = 0xfa;
  35        }
  36        return rdesc;
  37}
  38
  39#define pl_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
  40                                        EV_KEY, (c))
  41static int pl_input_mapping(struct hid_device *hdev, struct hid_input *hi,
  42                struct hid_field *field, struct hid_usage *usage,
  43                unsigned long **bit, int *max)
  44{
  45        if ((usage->hid & HID_USAGE_PAGE) == HID_UP_LOGIVENDOR) {
  46                switch (usage->hid & HID_USAGE) {
  47                case 0x05a: pl_map_key_clear(KEY_TEXT);         break;
  48                case 0x05b: pl_map_key_clear(KEY_RED);          break;
  49                case 0x05c: pl_map_key_clear(KEY_GREEN);        break;
  50                case 0x05d: pl_map_key_clear(KEY_YELLOW);       break;
  51                case 0x05e: pl_map_key_clear(KEY_BLUE);         break;
  52                default:
  53                        return 0;
  54                }
  55                return 1;
  56        }
  57
  58        if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) {
  59                switch (usage->hid & HID_USAGE) {
  60                case 0x0f6: pl_map_key_clear(KEY_NEXT);         break;
  61                case 0x0fa: pl_map_key_clear(KEY_BACK);         break;
  62                default:
  63                        return 0;
  64                }
  65                return 1;
  66        }
  67
  68        return 0;
  69}
  70
  71static int pl_probe(struct hid_device *hdev, const struct hid_device_id *id)
  72{
  73        int ret;
  74
  75        hdev->quirks |= HID_QUIRK_NOGET;
  76
  77        ret = hid_parse(hdev);
  78        if (ret) {
  79                hid_err(hdev, "parse failed\n");
  80                goto err_free;
  81        }
  82
  83        ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
  84        if (ret) {
  85                hid_err(hdev, "hw start failed\n");
  86                goto err_free;
  87        }
  88
  89        return 0;
  90err_free:
  91        return ret;
  92}
  93
  94static const struct hid_device_id pl_devices[] = {
  95        { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
  96        { }
  97};
  98MODULE_DEVICE_TABLE(hid, pl_devices);
  99
 100static struct hid_driver pl_driver = {
 101        .name = "petalynx",
 102        .id_table = pl_devices,
 103        .report_fixup = pl_report_fixup,
 104        .input_mapping = pl_input_mapping,
 105        .probe = pl_probe,
 106};
 107
 108static int __init pl_init(void)
 109{
 110        return hid_register_driver(&pl_driver);
 111}
 112
 113static void __exit pl_exit(void)
 114{
 115        hid_unregister_driver(&pl_driver);
 116}
 117
 118module_init(pl_init);
 119module_exit(pl_exit);
 120MODULE_LICENSE("GPL");
 121
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