drivers/nfc/mei_phy.h

   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 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_ */