text: /*
   * HCI based Driver for Inside Secure microread NFC Chip
   *
   * Copyright (C) 2013  Intel Corporation. All rights reserved.
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms and conditions of the GNU General Public License,
   * version 2, as published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the
   * Free Software Foundation, Inc.,
   * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
   */
  
  #include <linux/module.h>
  #include <linux/mod_devicetable.h>
  #include <linux/nfc.h>
  #include <net/nfc/hci.h>
  #include <net/nfc/llc.h>
  
  #include "../mei_phy.h"
  #include "microread.h"
  
  #define MICROREAD_DRIVER_NAME "microread"
  
  static int microread_mei_probe(struct mei_cl_device *device,
  			       const struct mei_cl_device_id *id)
  {
  	struct nfc_mei_phy *phy;
  	int r;
  
  	pr_info("Probing NFC microread\n");
  
  	phy = nfc_mei_phy_alloc(device);
  	if (!phy) {
  		pr_err("Cannot allocate memory for microread mei phy.\n");
  		return -ENOMEM;
  	}
  
  	r = microread_probe(phy, &mei_phy_ops, LLC_NOP_NAME,
  			    MEI_NFC_HEADER_SIZE, 0, MEI_NFC_MAX_HCI_PAYLOAD,
  			    &phy->hdev);
  	if (r < 0) {
  		nfc_mei_phy_free(phy);
  
  		return r;
  	}
  
  	return 0;
  }
  
  static int microread_mei_remove(struct mei_cl_device *device)
  {
  	struct nfc_mei_phy *phy = mei_cl_get_drvdata(device);
  
  	pr_info("Removing microread\n");
  
  	microread_remove(phy->hdev);
  
  	nfc_mei_phy_free(phy);
  
  	return 0;
  }
  
  static struct mei_cl_device_id microread_mei_tbl[] = {
  	{ MICROREAD_DRIVER_NAME },
  
  	/* required last entry */
  	{ }
  };
  MODULE_DEVICE_TABLE(mei, microread_mei_tbl);
  
  static struct mei_cl_driver microread_driver = {
  	.id_table = microread_mei_tbl,
  	.name = MICROREAD_DRIVER_NAME,
  
  	.probe = microread_mei_probe,
  	.remove = microread_mei_remove,
  };
  
  static int microread_mei_init(void)
  {
  	int r;
  
  	pr_debug(DRIVER_DESC ": %s\n", __func__);
  
  	r = mei_cl_driver_register(&microread_driver);
  	if (r) {
  		pr_err(MICROREAD_DRIVER_NAME ": driver registration failed\n");
  		return r;
  	}
  
  	return 0;
  }
  
  static void microread_mei_exit(void)
  {
  	mei_cl_driver_unregister(&microread_driver);
  }
  
  module_init(microread_mei_init);
  module_exit(microread_mei_exit);
  
  MODULE_LICENSE("GPL");
  MODULE_DESCRIPTION(DRIVER_DESC);
  