146fe7771SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */ 2ed06aeefSChristophe Ricard /* 3ed06aeefSChristophe Ricard * NCI based Driver for STMicroelectronics NFC Chip 4ed06aeefSChristophe Ricard * 5ed06aeefSChristophe Ricard * Copyright (C) 2014-2015 STMicroelectronics SAS. All rights reserved. 6ed06aeefSChristophe Ricard */ 7ed06aeefSChristophe Ricard 8ed06aeefSChristophe Ricard #ifndef __LOCAL_NDLC_H_ 9ed06aeefSChristophe Ricard #define __LOCAL_NDLC_H_ 10ed06aeefSChristophe Ricard 11ed06aeefSChristophe Ricard #include <linux/skbuff.h> 12ed06aeefSChristophe Ricard #include <net/nfc/nfc.h> 13ed06aeefSChristophe Ricard 143648dc6dSChristophe Ricard struct st_nci_se_status; 153648dc6dSChristophe Ricard 16ed06aeefSChristophe Ricard /* Low Level Transport description */ 17ed06aeefSChristophe Ricard struct llt_ndlc { 18ed06aeefSChristophe Ricard struct nci_dev *ndev; 19*7a5e98daSKrzysztof Kozlowski const struct nfc_phy_ops *ops; 20ed06aeefSChristophe Ricard void *phy_id; 21ed06aeefSChristophe Ricard 22ed06aeefSChristophe Ricard struct timer_list t1_timer; 23ed06aeefSChristophe Ricard bool t1_active; 24ed06aeefSChristophe Ricard 25ed06aeefSChristophe Ricard struct timer_list t2_timer; 26ed06aeefSChristophe Ricard bool t2_active; 27ed06aeefSChristophe Ricard 28ed06aeefSChristophe Ricard struct sk_buff_head rcv_q; 29ed06aeefSChristophe Ricard struct sk_buff_head send_q; 30ed06aeefSChristophe Ricard struct sk_buff_head ack_pending_q; 31ed06aeefSChristophe Ricard 32ed06aeefSChristophe Ricard struct work_struct sm_work; 33ed06aeefSChristophe Ricard 34ed06aeefSChristophe Ricard struct device *dev; 35ed06aeefSChristophe Ricard 36ed06aeefSChristophe Ricard /* 37ed06aeefSChristophe Ricard * < 0 if hardware error occurred 38ed06aeefSChristophe Ricard * and prevents normal operation. 39ed06aeefSChristophe Ricard */ 40ed06aeefSChristophe Ricard int hard_fault; 41ed06aeefSChristophe Ricard int powered; 42ed06aeefSChristophe Ricard }; 43ed06aeefSChristophe Ricard 44ed06aeefSChristophe Ricard int ndlc_open(struct llt_ndlc *ndlc); 45ed06aeefSChristophe Ricard void ndlc_close(struct llt_ndlc *ndlc); 46ed06aeefSChristophe Ricard int ndlc_send(struct llt_ndlc *ndlc, struct sk_buff *skb); 47ed06aeefSChristophe Ricard void ndlc_recv(struct llt_ndlc *ndlc, struct sk_buff *skb); 48*7a5e98daSKrzysztof Kozlowski int ndlc_probe(void *phy_id, const struct nfc_phy_ops *phy_ops, 49*7a5e98daSKrzysztof Kozlowski struct device *dev, int phy_headroom, int phy_tailroom, 50*7a5e98daSKrzysztof Kozlowski struct llt_ndlc **ndlc_id, struct st_nci_se_status *se_status); 51ed06aeefSChristophe Ricard void ndlc_remove(struct llt_ndlc *ndlc); 52ed06aeefSChristophe Ricard #endif /* __LOCAL_NDLC_H__ */ 53