1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (C) 2013 Intel Corporation. All rights reserved. 4 * 5 * HCI based Driver for Inside Secure microread NFC Chip 6 */ 7 8 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 9 10 #include <linux/module.h> 11 #include <linux/mod_devicetable.h> 12 #include <linux/nfc.h> 13 #include <net/nfc/llc.h> 14 15 #include "../mei_phy.h" 16 #include "microread.h" 17 18 #define MICROREAD_DRIVER_NAME "microread" 19 20 static int microread_mei_probe(struct mei_cl_device *cldev, 21 const struct mei_cl_device_id *id) 22 { 23 struct nfc_mei_phy *phy; 24 int r; 25 26 phy = nfc_mei_phy_alloc(cldev); 27 if (!phy) 28 return -ENOMEM; 29 30 r = microread_probe(phy, &mei_phy_ops, LLC_NOP_NAME, 31 MEI_NFC_HEADER_SIZE, 0, MEI_NFC_MAX_HCI_PAYLOAD, 32 &phy->hdev); 33 if (r < 0) { 34 nfc_mei_phy_free(phy); 35 36 return r; 37 } 38 39 return 0; 40 } 41 42 static void microread_mei_remove(struct mei_cl_device *cldev) 43 { 44 struct nfc_mei_phy *phy = mei_cldev_get_drvdata(cldev); 45 46 microread_remove(phy->hdev); 47 48 nfc_mei_phy_free(phy); 49 } 50 51 static struct mei_cl_device_id microread_mei_tbl[] = { 52 { MICROREAD_DRIVER_NAME, MEI_NFC_UUID, MEI_CL_VERSION_ANY}, 53 54 /* required last entry */ 55 { } 56 }; 57 MODULE_DEVICE_TABLE(mei, microread_mei_tbl); 58 59 static struct mei_cl_driver microread_driver = { 60 .id_table = microread_mei_tbl, 61 .name = MICROREAD_DRIVER_NAME, 62 63 .probe = microread_mei_probe, 64 .remove = microread_mei_remove, 65 }; 66 67 module_mei_cl_driver(microread_driver); 68 69 MODULE_LICENSE("GPL"); 70 MODULE_DESCRIPTION(DRIVER_DESC); 71