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                 dev_info(&hdev->dev, "fixing up Petalynx Maxter Remote report "
  33                                 "descriptor\n");
  34                 rdesc[60] = 0xfa;
  35                 rdesc[40] = 0xfa;
  36         }
  37         return rdesc;
  38 }
  39
  40 #define pl_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
  41                                         EV_KEY, (c))
  42 static int pl_input_mapping(struct hid_device *hdev, struct hid_input *hi,
  43                 struct hid_field *field, struct hid_usage *usage,
  44                 unsigned long **bit, int *max)
  45 {
  46         if ((usage->hid & HID_USAGE_PAGE) == HID_UP_LOGIVENDOR) {
  47                 switch (usage->hid & HID_USAGE) {
  48                 case 0x05a: pl_map_key_clear(KEY_TEXT);         break;
  49                 case 0x05b: pl_map_key_clear(KEY_RED);          break;
  50                 case 0x05c: pl_map_key_clear(KEY_GREEN);        break;
  51                 case 0x05d: pl_map_key_clear(KEY_YELLOW);       break;
  52                 case 0x05e: pl_map_key_clear(KEY_BLUE);         break;
  53                 default:
  54                         return 0;
  55                 }
  56                 return 1;
  57         }
  58
  59         if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) {
  60                 switch (usage->hid & HID_USAGE) {
  61                 case 0x0f6: pl_map_key_clear(KEY_NEXT);         break;
  62                 case 0x0fa: pl_map_key_clear(KEY_BACK);         break;
  63                 default:
  64                         return 0;
  65                 }
  66                 return 1;
  67         }
  68
  69         return 0;
  70 }
  71
  72 static int pl_probe(struct hid_device *hdev, const struct hid_device_id *id)
  73 {
  74         int ret;
  75
  76         hdev->quirks |= HID_QUIRK_NOGET;
  77
  78         ret = hid_parse(hdev);
  79         if (ret) {
  80                 dev_err(&hdev->dev, "parse failed\n");
  81                 goto err_free;
  82         }
  83
  84         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
  85         if (ret) {
  86                 dev_err(&hdev->dev, "hw start failed\n");
  87                 goto err_free;
  88         }
  89
  90         return 0;
  91 err_free:
  92         return ret;
  93 }
  94
  95 static const struct hid_device_id pl_devices[] = {
  96         { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
  97         { }
  98 };
  99 MODULE_DEVICE_TABLE(hid, pl_devices);
 100
 101 static struct hid_driver pl_driver = {
 102         .name = "petalynx",
 103         .id_table = pl_devices,
 104         .report_fixup = pl_report_fixup,
 105         .input_mapping = pl_input_mapping,
 106         .probe = pl_probe,
 107 };
 108
 109 static int __init pl_init(void)
 110 {
 111         return hid_register_driver(&pl_driver);
 112 }
 113
 114 static void __exit pl_exit(void)
 115 {
 116         hid_unregister_driver(&pl_driver);
 117 }
 118
 119 module_init(pl_init);
 120 module_exit(pl_exit);
 121 MODULE_LICENSE("GPL");