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