xref: /openbmc/linux/drivers/nfc/mei_phy.h (revision fbb6b31a)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __LOCAL_MEI_PHY_H_
3 #define __LOCAL_MEI_PHY_H_
4 
5 #include <linux/mei_cl_bus.h>
6 #include <net/nfc/hci.h>
7 #include <linux/uuid.h>
8 
9 #define MEI_NFC_UUID UUID_LE(0x0bb17a78, 0x2a8e, 0x4c50, \
10 		0x94, 0xd4, 0x50, 0x26, 0x67, 0x23, 0x77, 0x5c)
11 #define MEI_NFC_HEADER_SIZE 10
12 #define MEI_NFC_MAX_HCI_PAYLOAD 300
13 
14 /**
15  * struct nfc_mei_phy
16  *
17  * @cldev: mei client device
18  * @hdev:   nfc hci device
19 
20  * @send_wq: send completion wait queue
21  * @fw_ivn: NFC Interface Version Number
22  * @vendor_id: NFC manufacturer ID
23  * @radio_type: NFC radio type
24  * @reserved: reserved for alignment
25  * @req_id:  message counter
26  * @recv_req_id: reception message counter
27  * @powered: the device is in powered state
28  * @hard_fault: < 0 if hardware error occurred
29  *    and prevents normal operation.
30  */
31 struct nfc_mei_phy {
32 	struct mei_cl_device *cldev;
33 	struct nfc_hci_dev *hdev;
34 
35 	wait_queue_head_t send_wq;
36 	u8 fw_ivn;
37 	u8 vendor_id;
38 	u8 radio_type;
39 	u8 reserved;
40 
41 	u16 req_id;
42 	u16 recv_req_id;
43 
44 	int powered;
45 	int hard_fault;
46 };
47 
48 extern const struct nfc_phy_ops mei_phy_ops;
49 
50 struct nfc_mei_phy *nfc_mei_phy_alloc(struct mei_cl_device *device);
51 void nfc_mei_phy_free(struct nfc_mei_phy *phy);
52 
53 #endif /* __LOCAL_MEI_PHY_H_ */
54