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kernel/linux-imx6_3.14.28/drivers/hid/hid-monterey.c 1.89 KB
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  /*
   *  HID driver for some monterey "special" devices
   *
   *  Copyright (c) 1999 Andreas Gal
   *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
   *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
   *  Copyright (c) 2006-2007 Jiri Kosina
   *  Copyright (c) 2008 Jiri Slaby
   */
  
  /*
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License as published by the Free
   * Software Foundation; either version 2 of the License, or (at your option)
   * any later version.
   */
  
  #include <linux/device.h>
  #include <linux/hid.h>
  #include <linux/module.h>
  
  #include "hid-ids.h"
  
  static __u8 *mr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
  		unsigned int *rsize)
  {
  	if (*rsize >= 31 && rdesc[29] == 0x05 && rdesc[30] == 0x09) {
  		hid_info(hdev, "fixing up button/consumer in HID report descriptor
  ");
  		rdesc[30] = 0x0c;
  	}
  	return rdesc;
  }
  
  #define mr_map_key_clear(c)	hid_map_usage_clear(hi, usage, bit, max, \
  					EV_KEY, (c))
  static int mr_input_mapping(struct hid_device *hdev, struct hid_input *hi,
  		struct hid_field *field, struct hid_usage *usage,
  		unsigned long **bit, int *max)
  {
  	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
  		return 0;
  
  	switch (usage->hid & HID_USAGE) {
  	case 0x156: mr_map_key_clear(KEY_WORDPROCESSOR);	break;
  	case 0x157: mr_map_key_clear(KEY_SPREADSHEET);		break;
  	case 0x158: mr_map_key_clear(KEY_PRESENTATION);		break;
  	case 0x15c: mr_map_key_clear(KEY_STOP);			break;
  	default:
  		return 0;
  	}
  	return 1;
  }
  
  static const struct hid_device_id mr_devices[] = {
  	{ HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
  	{ }
  };
  MODULE_DEVICE_TABLE(hid, mr_devices);
  
  static struct hid_driver mr_driver = {
  	.name = "monterey",
  	.id_table = mr_devices,
  	.report_fixup = mr_report_fixup,
  	.input_mapping = mr_input_mapping,
  };
  module_hid_driver(mr_driver);
  
  MODULE_LICENSE("GPL");