Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Copyright (C) 2013 Intel Corporation. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * HCI based Driver for Inside Secure microread NFC Chip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/mod_devicetable.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/nfc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <net/nfc/hci.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <net/nfc/llc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include "../mei_phy.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "microread.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define MICROREAD_DRIVER_NAME "microread"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) static int microread_mei_probe(struct mei_cl_device *cldev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 			       const struct mei_cl_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	struct nfc_mei_phy *phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	int r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	pr_info("Probing NFC microread\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	phy = nfc_mei_phy_alloc(cldev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	if (!phy) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 		pr_err("Cannot allocate memory for microread mei phy.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	r = microread_probe(phy, &mei_phy_ops, LLC_NOP_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 			    MEI_NFC_HEADER_SIZE, 0, MEI_NFC_MAX_HCI_PAYLOAD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 			    &phy->hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	if (r < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 		nfc_mei_phy_free(phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 		return r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) static int microread_mei_remove(struct mei_cl_device *cldev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	struct nfc_mei_phy *phy = mei_cldev_get_drvdata(cldev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	microread_remove(phy->hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	nfc_mei_phy_free(phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) static struct mei_cl_device_id microread_mei_tbl[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 	{ MICROREAD_DRIVER_NAME, MEI_NFC_UUID, MEI_CL_VERSION_ANY},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 	/* required last entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 	{ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) MODULE_DEVICE_TABLE(mei, microread_mei_tbl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) static struct mei_cl_driver microread_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 	.id_table = microread_mei_tbl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 	.name = MICROREAD_DRIVER_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 	.probe = microread_mei_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 	.remove = microread_mei_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) module_mei_cl_driver(microread_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) MODULE_DESCRIPTION(DRIVER_DESC);