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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 */
 25 static __u8 *pl_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 26                 unsigned int *rsize)
 27 {
 28         if (*rsize >= 62 && 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 module_hid_driver(pl_driver);
107 
108 MODULE_LICENSE("GPL");
109 

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