linux-stable/drivers/nfc/mei_phy.h
Krzysztof Kozlowski 7a5e98daf6 nfc: constify nfc_phy_ops
Neither the core nor the drivers modify the passed pointer to struct
nfc_phy_ops (consisting of function pointers), so make it a pointer
to const for correctness and safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-25 09:21:21 +01:00

53 lines
1.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LOCAL_MEI_PHY_H_
#define __LOCAL_MEI_PHY_H_
#include <linux/mei_cl_bus.h>
#include <net/nfc/hci.h>
#include <linux/uuid.h>
#define MEI_NFC_UUID UUID_LE(0x0bb17a78, 0x2a8e, 0x4c50, \
0x94, 0xd4, 0x50, 0x26, 0x67, 0x23, 0x77, 0x5c)
#define MEI_NFC_HEADER_SIZE 10
#define MEI_NFC_MAX_HCI_PAYLOAD 300
/**
* struct nfc_mei_phy
*
* @cldev: mei client device
* @hdev: nfc hci device
* @send_wq: send completion wait queue
* @fw_ivn: NFC Interface Version Number
* @vendor_id: NFC manufacturer ID
* @radio_type: NFC radio type
* @reserved: reserved for alignment
* @req_id: message counter
* @recv_req_id: reception message counter
* @powered: the device is in powered state
* @hard_fault: < 0 if hardware error occurred
* and prevents normal operation.
*/
struct nfc_mei_phy {
struct mei_cl_device *cldev;
struct nfc_hci_dev *hdev;
wait_queue_head_t send_wq;
u8 fw_ivn;
u8 vendor_id;
u8 radio_type;
u8 reserved;
u16 req_id;
u16 recv_req_id;
int powered;
int hard_fault;
};
extern const struct nfc_phy_ops mei_phy_ops;
struct nfc_mei_phy *nfc_mei_phy_alloc(struct mei_cl_device *device);
void nfc_mei_phy_free(struct nfc_mei_phy *phy);
#endif /* __LOCAL_MEI_PHY_H_ */