1// SPDX-License-Identifier: GPL-2.0 2/* 3 * Copyright (C) 2013 Intel Corporation. All rights reserved. 4 * 5 * HCI based Driver for NXP pn544 NFC Chip 6 */ 7 8#include <linux/module.h> 9#include <linux/mod_devicetable.h> 10#include <linux/nfc.h> 11#include <net/nfc/hci.h> 12#include <net/nfc/llc.h> 13 14#include "../mei_phy.h" 15#include "pn544.h" 16 17#define PN544_DRIVER_NAME "pn544" 18 19static int pn544_mei_probe(struct mei_cl_device *cldev, 20 const struct mei_cl_device_id *id) 21{ 22 struct nfc_mei_phy *phy; 23 int r; 24 25 phy = nfc_mei_phy_alloc(cldev); 26 if (!phy) 27 return -ENOMEM; 28 29 r = pn544_hci_probe(phy, &mei_phy_ops, LLC_NOP_NAME, 30 MEI_NFC_HEADER_SIZE, 0, MEI_NFC_MAX_HCI_PAYLOAD, 31 NULL, &phy->hdev); 32 if (r < 0) { 33 nfc_mei_phy_free(phy); 34 35 return r; 36 } 37 38 return 0; 39} 40 41static void pn544_mei_remove(struct mei_cl_device *cldev) 42{ 43 struct nfc_mei_phy *phy = mei_cldev_get_drvdata(cldev); 44 45 pn544_hci_remove(phy->hdev); 46 47 nfc_mei_phy_free(phy); 48} 49 50static struct mei_cl_device_id pn544_mei_tbl[] = { 51 { PN544_DRIVER_NAME, MEI_NFC_UUID, MEI_CL_VERSION_ANY}, 52 53 /* required last entry */ 54 { } 55}; 56MODULE_DEVICE_TABLE(mei, pn544_mei_tbl); 57 58static struct mei_cl_driver pn544_driver = { 59 .id_table = pn544_mei_tbl, 60 .name = PN544_DRIVER_NAME, 61 62 .probe = pn544_mei_probe, 63 .remove = pn544_mei_remove, 64}; 65 66module_mei_cl_driver(pn544_driver); 67 68MODULE_LICENSE("GPL"); 69MODULE_DESCRIPTION(DRIVER_DESC); 70