LXR linux/drivers/hid/hid-petalynx.c

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