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 */
  25 static __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))
  40 static 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
  70 static 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;
  89 err_free:
  90         return ret;
  91 }
  92
  93 static const struct hid_device_id pl_devices[] = {
  94         { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
  95         { }
  96 };
  97 MODULE_DEVICE_TABLE(hid, pl_devices);
  98
  99 static 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
 107 static int __init pl_init(void)
 108 {
 109         return hid_register_driver(&pl_driver);
 110 }
 111
 112 static void __exit pl_exit(void)
 113 {
 114         hid_unregister_driver(&pl_driver);
 115 }
 116
 117 module_init(pl_init);
 118 module_exit(pl_exit);
 119 MODULE_LICENSE("GPL");