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"); 121